Interacciones de Norgestimato y etinilestradiol

Concomitant use of combined hormonal contraceptives ( 4.1 ) (etiqueta de Ácido tranexámico, Contraindicaciones)

For patients with amenorrhea, the second test should be done at least 11 days after the last act of unprotected sexual intercourse (without using 2 effective forms of contraception [birth control] simultaneously). (etiqueta de Acitretina, Advertencia en recuadro)

Estrogen Estrogen-containing therapies should not be used with ARIMIDEX as they may diminish its pharmacological action. (etiqueta de Anastrozol, Interacciones medicamentosas)

…surgery with prolonged immobilization • Current diagnosis of, or history of, breast cancer, which may be hormone-sensitive • Carcinoma of the endometrium or other known or suspected estrogen-dependent neoplasia • Undiagnosed abnormal genital bleeding • Cholestatic jaundice of pregnancy or jaundice with prior pill use • Acute or chronic hepatocellular disease with… (etiqueta de Desogestrel y etinilestradiol, Contraindicaciones)

CARDIOVASCULAR AND OTHER RISKS Estrogens and progestins should not be used for the prevention of cardiovascular disease [see WARNINGS , Cardiovascular disorders ]. (etiqueta de Estradiol, Advertencia en recuadro)

Therefore, the relevance of the WHI findings regarding adverse cardiovascular events, dementia and breast cancer to lower CE plus other MPA doses, other routes of administration, or other estrogen plus progestogen products is not known. (etiqueta de Estradiol y noretisterona, Advertencia en recuadro)

Adding a progestin to estrogen therapy has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. (etiqueta de Estrógenos conjugados, Advertencia en recuadro)

WARNING: ENDOMETRIAL CANCER, CARDIOVASCULAR DISORDERS, AND PROBABLE DEMENTIA • Women taking DUAVEE should not take additional estrogens [see Warnings and Precautions (5.1) ] • There is an increased risk of endometrial cancer in a woman with a uterus who uses unopposed estrogens. (etiqueta de Estrógenos conjugados y bazedoxifeno, Advertencia en recuadro)

(See WARNINGS, Malignant Neoplasms, Endometrial Cancer. ) CARDIOVASCULAR AND OTHER RISKS Estrogens with or without progestins should not be used for the prevention of cardiovascular disease. (etiqueta de Estrógenos esterificados y metiltestosterona, Advertencia en recuadro)

WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS Cigarette smoking increases the risk of serious cardiovascular events from combination hormonal contraceptive (CHC) use. (etiqueta de Etonogestrel y etinilestradiol, Advertencia en recuadro)

Administration with Estrogen-Containing Agents EXEMESTANE should not be coadministered with systemic estrogen-containing agents as these could interfere with its pharmacologic action. (etiqueta de Exemestano, Advertencias y precauciones)

Women taking estrogen-containing oral contraceptives may be at increased risk of becoming pregnant while on griseofulvin (see also PRECAUTIONS, Drug Interactions ) . (etiqueta de Griseofulvina, Contraindicaciones)

La hierba de San Juan (hipérico) puede hacer que las píldoras anticonceptivas sean menos eficaces. (NCCIH, St. John's Wort)

…Precautions ( 5.4 )] • Postpartum endometritis or infected abortion in the past 3 months • Known or suspected uterine or cervical malignancy • Known or suspected breast cancer or other progestin-sensitive cancer, now or in the past • Uterine bleeding of unknown etiology • Untreated acute cervicitis or vaginitis, including bacterial vaginosis or other lower genital… (etiqueta de Levonorgestrel, Contraindicaciones)

…symptoms, migraine headaches with aura, or over age 35 with any migraine headaches [see Warnings and Precautions (5.7) ] Current or history of breast cancer or other estrogen- or progestin-sensitive cancer Liver tumors, acute viral hepatitis, or severe (decompensated) cirrhosis [see Warnings and Precautions (5.2) ] Undiagnosed abnormal uterine bleeding [see… (etiqueta de Levonorgestrel y etinilestradiol, Contraindicaciones)

Co-administration with Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir ( 4 ) (etiqueta de Norgestimato y etinilestradiol, Contraindicaciones)

• MPA Injectable Suspension, USP is not recommended as a long-term (i.e., longer than 2 years) birth control method unless other options are considered inadequate [see Indications and Usage (1) and Warnings and Precautions (5.1) ] . (etiqueta de Medroxiprogesterona, Advertencia en recuadro)

Hormonal contraceptives: Do not use with mifepristone ( 7.6 ). (etiqueta de Mifepristona, Interacciones medicamentosas)

• is capable of complying with effective contraceptive measures. (etiqueta de Misoprostol, Advertencia en recuadro)

Sensitive CYP3A substrates including hormonal contraceptives: Avoid concomitant use with substrates that have narrow therapeutic index. (etiqueta de Mitapivat, Interacciones medicamentosas)

Hormonal contraceptives: Avoid concomitant use with LYSODREN. (etiqueta de Mitotano, Interacciones medicamentosas)

Co-administration with Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir ( 4 ) (etiqueta de Norgestimato y etinilestradiol, Contraindicaciones)

WARNING: CIGARETTE SMOKING AND SERIOUS CARDIOVASCULAR EVENTS and CONTRAINDICATED IN WOMEN WITH A BMI |GTE 30 kg/m2 • Cigarette Smoking and Serious Cardiovascular Events Cigarette smoking increases the risk of serious cardiovascular events from hormonal contraceptive use. (etiqueta de Norelgestromina y etinilestradiol, Advertencia en recuadro)

CONTRAINDICATIONS Progestin-only oral contraceptives (POPs) should not be used by women who currently have the following conditions: • Known or suspected pregnancy • Known or suspected carcinoma of the breast. (etiqueta de Noretisterona, Contraindicaciones)

Coronary Heart Disease In women 50 to 59 years of age, the WHI estrogen plus progestin trial reported a relative risk for coronary heart disease (CHD) events (defined as nonfatal MI, silent MI, or CHD death) of 1.34 (95% CI, 0.82, 2.19) for CE/MPA compared placebo, with a risk difference of 5 per 10,000 WYs (23 versus 17). (etiqueta de Progesterona, Advertencias)

Concomitant Use with Systemic Estrogens : Not recommended. (etiqueta de Raloxifeno, Advertencias y precauciones)

Co-administration with Hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir ( 4 ) (etiqueta de Norgestimato y etinilestradiol, Contraindicaciones)

WARNING: CIGARETTE SMOKING and SERIOUS CARDIOVASCULAR EVENTS WARNING: CIGARETTE SMOKING and SERIOUS CARDIOVASCULAR EVENTS See full prescribing information for complete boxed warning. ● Mono-Linyah is contraindicated in women over 35 years old who smoke. (etiqueta de Norgestimato y etinilestradiol, Advertencia en recuadro)

Moderate or Weak CYP1A2 Inhibitors Concomitant use of Zanaflex with moderate or weak CYP1A2 inhibitors (e.g., zileuton, antiarrhythmics [amiodarone, mexiletine, propafenone, and verapamil], cimetidine, famotidine, oral contraceptives, acyclovir, and ticlopidine) should be avoided. (etiqueta de Tizanidina, Interacciones medicamentosas)

John's Wort (CYP450 inducer; P-gp inducer) Significantly Reduced Contraindicated Oral Contraceptives containing ethinyl estradiol and norethindrone (CYP2C19 Inhibition) Increased Monitoring for adverse reactions and toxicity related to voriconazole is recommended for concomitant administration with oral contraceptives. (etiqueta de Voriconazol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Drugs Affecting Lipid Metabolism Estrogens, oral contraceptives, and clofibrate (and perhaps other lipid-lowering drugs) increase hepatic cholesterol secretion and encourage cholesterol gallstone formation and hence may counteract the effectiveness of URSO 250 and URSO Forte. (etiqueta de Ácido ursodesoxicólico, Interacciones medicamentosas)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (etiqueta de Ácido valproico, Interacciones medicamentosas)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs and isoniazid Alogliptin Cytochrome (CYP) P450, CYP-Substrates or Inhibitors Clinical Impact: Insulin Secretagogues and Insulin Insulin and insulin secretagogues… (etiqueta de Alogliptina y metformina, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Substances increasing the plasma concentrations of COCs Co-administration of atorvastatin or rosuvastatin and certain COCs containing ethinyl estradiol (EE) increase AUC values for EE by approximately 20-25%. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Amoxicillin may reduce the efficacy of oral contraceptives. (etiqueta de Amoxicilina, Interacciones medicamentosas)

Amoxicillin and Clavulanate Potassium Extended Release Tablets may reduce efficacy of oral contraceptives. (etiqueta de Amoxicilina y ácido clavulánico, Interacciones medicamentosas)

Oral Contraceptives : May be less effective and increased breakthrough bleeding may occur. (etiqueta de Ampicilina, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Substances increasing the plasma concentrations of COCs Co-administration of atorvastatin or rosuvastatin and certain COCs containing ethinyl estradiol (EE) increase AUC values for EE by approximately 20-25%. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Drugs without Clinically Significant Interactions with Cabotegravir Based on drug interaction study results, the following drugs can be coadministered with cabotegravir without a dose adjustment: etravirine, midazolam, oral contraceptives containing levonorgestrel and ethinyl estradiol, rifabutin, and rilpivirine [see Clinical Pharmacology ( 12.3 )] . (etiqueta de Cabotegravir, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Drugs That Increase the Risk of Hypercalcemia Increase frequency of monitoring of calcium concentrations in patients taking concomitant Calcium Chloride Injection and other drugs that increase the risk of hypercalcemia (e.g., calcipotriene, estrogen, lithium, parathyroid hormone, teriparatide, thiazide diuretics, Vitamin A, and Vitamin D). (etiqueta de Cloruro de calcio, Interacciones medicamentosas)

Plasma cholinesterase activity may be decreased by chronic administration of certain monoamine oxidase inhibitors, oral contraceptives, glucocorticoids, antimyasthenics (neostigmine), cyclophosphamide, and possibly thiotepa. (etiqueta de Cocaína, Interacciones medicamentosas)

The drug interaction between the contraceptive and colesevelam was decreased when the two drug products were given 4 hours apart. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Colesevelam: Colesevelam, a bile acid sequestrant, given together with a COC, has been shown to significantly decrease the AUC of EE. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Colesevelam: Colesevelam, a bile acid sequestrant, given together with a COC, has been shown to significantly decrease the AUC of EE. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Safe and effective induction of ovulation with use of PREGNYL requires monitoring of ovarian response with serum estradiol and transvaginal ultrasound on a regular basis. (etiqueta de Coriogonadotropina alfa, Advertencias)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Chronic increase in serum prolactin levels (although not evaluated in the AUSTEDO XR, AUSTEDO, or tetrabenazine development programs) has been associated with low levels of estrogen and increased risk of osteoporosis. (etiqueta de Deutetrabenazina, Advertencias y precauciones)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives, methotrexate: Monitoring of valproate concentrations is recommended ( 7.1 ) (etiqueta de Divalproato de sodio (valproato), Interacciones medicamentosas)

…following drugs can be coadministered with dolutegravir without a dose adjustment: atazanavir/ritonavir, darunavir/ritonavir, elbasvir/grazoprevir, methadone, midazolam, omeprazole, oral contraceptives containing norgestimate and ethinyl estradiol, prednisone, rifabutin, rilpivirine, sofosbuvir/velpatasvir, and tenofovir [see Clinical Pharmacology ( 12.3 )] . (etiqueta de Dolutegravir, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

For patients with CF taking hormonal contraceptives who develop rash, consider interrupting TRIKAFTA and hormonal contraceptives. (etiqueta de Elexacaftor, tezacaftor e ivacaftor, Interacciones medicamentosas)

…tipranavir/ritonavir] or increase [e.g., indinavir and atazanavir/ritonavir])/HCV protease inhibitors (decrease [e.g., boceprevir and telaprevir]) or with non-nucleoside reverse transcriptase inhibitors (decrease [e.g., nevirapine] or increase [e.g., etravirine]) or with HIV/AIDS medications containing strong inhibitors (e.g., cobicistat and ritonavir) or inducers of CYP3A. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Weak CYP3A4 Inhibitors Examples Oral contraceptives, cimetidine, fluoxetine, ginkgo, ranitidine Clinical Implications The concomitant use of ADDYI with multiple weak CYP3A4 inhibitors may increase the risk of adverse reactions. (etiqueta de Flibanserina, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Estrogen —increased levels of corticosteroid-binding globulin thereby increasing the bound (inactive) fraction; this effect is at least balanced by decreased metabolism of corticosteroids. (etiqueta de Fludrocortisona, Interacciones medicamentosas)

Use of ultrasound monitoring of ovarian response and/or measurement of serum estradiol levels is important to minimize the risk of overstimulation [see Warnings and Precautions (5.8) ] . (etiqueta de Folitropina, Advertencias y precauciones)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Oral Contraceptive Based on AUC and half-life, multiple-dose pharmacokinetic profiles of norethindrone and ethinyl estradiol following administration of tablets containing 2.5 mg of norethindrone acetate and 50 mcg of ethinyl estradiol were similar with and without coadministration of gabapentin (400 mg three times a day; N=13). (etiqueta de Gabapentina, Interacciones medicamentosas)

…somatropin, protease inhibitors, atypical antipsychotic medications (e.g., olanzapine and clozapine), barbiturates, diazoxide, laxatives, rifampin, thiazides and other diuretics, corticosteroids, phenothiazines, thyroid hormones, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics (e.g., epinephrine, albuterol, terbutaline), and isoniazid. (etiqueta de Glimepirida, Interacciones medicamentosas)

…GLUCOTROL XL, leading to worsening glycemic control: atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Glipizida, Interacciones medicamentosas)

Tumor Flare Phenomenon Initially, ZOLADEX, like other GnRH agonists, causes transient increases in serum levels of testosterone in men with prostate cancer, and estrogen in women with breast cancer. (etiqueta de Goserelina, Advertencias y precauciones)

• Large doses of salicylates, cortisone, adrenocorticotropic hormone (ACTH), estrogens or antihistamines may require larger amounts of hyaluronidase for equivalent dispersing effect ( 7.4 ) (etiqueta de Hialuronidasa, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Intervention: Concomitant use of estrogen/estrogen containing products may require an increase in the ALKINDI SPRINKLE dose. (etiqueta de Hidrocortisona, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…Glucose Lowering Effect of Insulin Aspart Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Insulina asparta, Interacciones medicamentosas)

…Glucose Lowering Effect of Insulin Degludec Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Insulina degludec, Interacciones medicamentosas)

…Blood Glucose Lowering Effect of LEVEMIR Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Insulina detemir, Interacciones medicamentosas)

…Lowering Effect of Insulin Glargine-yfgn Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Insulina glargina, Interacciones medicamentosas)

…Blood Glucose Lowering Effect of LYUMJEV Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline),… (etiqueta de Insulina lispro, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effect on Oral Contraceptives Teriflunomide may increase the systemic exposures of ethinylestradiol and levonorgestrel. (etiqueta de Leflunomida, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Females must commit either to abstain continuously from heterosexual sexual intercourse or to use two methods of reliable birth control, beginning 4 weeks prior to initiating treatment with REVLIMID, during therapy, during dose interruptions and continuing for 4 weeks following discontinuation of REVLIMID therapy. (etiqueta de Lenalidomida, Advertencias y precauciones)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

Careful titration may then be considered based on LDL-C response and safety/tolerability to a maximum recommended dosage of 30 mg daily except when coadministered with oral contraceptives, in which case the maximum recommended lomitapide dosage is 40 mg daily [see Dosage and Administration (2.3) and Drug Interactions (7.2) ]. (etiqueta de Lomitapida, Advertencias y precauciones)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Estrogens, including oral contraceptives : Estrogens may decrease the hepatic metabolism of certain corticosteroids, thereby increasing their effect. (etiqueta de Metilprednisolona, Interacciones medicamentosas)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Mycophenolate mofetil may reduce effectiveness of oral contraceptives. (etiqueta de Micofenolato, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Advise women taking oral hormonal contraceptives experiencing vomiting, diarrhea, or other conditions where the drug absorption may be reduced to use alternative highly effective contraception. (etiqueta de Nintedanib, Advertencias y precauciones)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the plasma concentrations of COCs and potentially diminish the effectiveness of COCs or increase breakthrough bleeding. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Intervention: Decreased bioavailability may potentially diminish the effectiveness of combined oral contraceptives (COCs) or increase breakthrough bleeding. (etiqueta de Octreotida, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…somatropin, protease inhibitors, atypical antipsychotic medications (e.g., olanzapine and clozapine), barbiturates, diazoxide, laxatives, rifampin, thiazides and other diuretics, corticosteroids, phenothiazines, thyroid hormones, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics (e.g., epinephrine, albuterol, terbutaline), and isoniazid. (etiqueta de Pioglitazona y glimepirida, Interacciones medicamentosas)

Sensitive CYP3A4 Substrates (including hormonal contraceptives): WAKIX may reduce effectiveness of sensitive CYP3A4 substrates. (etiqueta de Pitolisant, Interacciones medicamentosas)

Females must commit either to abstain continuously from heterosexual sexual intercourse or to use 2 methods of reliable birth control, beginning 4 weeks prior to initiating treatment with POMALYST, during therapy, during dose interruptions, and continuing for 4 weeks following discontinuation of POMALYST therapy. (etiqueta de Pomalidomida, Advertencias y precauciones)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Estrogens, Including Oral Contraceptives Estrogens may decrease the hepatic metabolism of certain corticosteroids, thereby increasing their effect. (etiqueta de Prednisona, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

Oral Contraceptives (Estrogen, Progestin) In 7 healthy females who were using single-ingredient progestin or combination estrogen-containing oral contraceptives, the pharmacokinetic parameters of a single 600 mg dose of quinine sulfate were not altered in comparison to those observed in 7 age-matched female control subjects not using oral contraceptives. (etiqueta de Quinina, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

The concomitant use of strong or moderate CYP1A2 inhibitors (e.g., ciprofloxacin, enoxacin, fluvoxamine, methoxsalen, mexiletine, oral contraceptives, thiabendazole, vemurafenib, zileuton) with TIGLUTIK may increase the risk of TIGLUTIK - associated adverse reactions [see Clinical Pharmacology (12.3) ]. (etiqueta de Riluzol, Interacciones medicamentosas)

Oral Contraceptives Containing Gestodene and Ethinyl Estradiol The co-administration of DALIRESP (500 mcg) with oral contraceptives containing gestodene and ethinyl estradiol may increase roflumilast systemic exposure and may result in increased side effects. (etiqueta de Roflumilast, Interacciones medicamentosas)

Estrogens Population pharmacokinetic analysis revealed that higher doses of estrogens (usually associated with hormone replacement therapy) reduced the clearance of ropinirole. (etiqueta de Ropinirol, Interacciones medicamentosas)

Substances increasing the plasma concentrations of COCs Co-administration of atorvastatin or rosuvastatin and certain COCs containing ethinyl estradiol (EE) increase AUC values for EE by approximately 20-25%. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Oral Estrogen Clinical Impact: Oral estrogens may reduce the serum IGF-1 response to HUMATROPE. (etiqueta de Somatropina, Interacciones medicamentosas)

Oral Contraceptives: Decreased efficacy possibly resulting in pregnancy; use a different or additional form of contraception. (etiqueta de Subcitrato de bismuto, metronidazol y tetraciclina, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Therefore, the administration of a bolus dose of BRIDION is considered to be equivalent to missing dose(s) of oral contraceptives containing an estrogen or progestogen. (etiqueta de Sugammadex, Interacciones medicamentosas)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

The neuromuscular blocking effect of succinylcholine may be enhanced by drugs that reduce plasma cholinesterase activity (e.g., chronically administered oral contraceptives, glucocorticoids, or certain monoamine oxidase inhibitors) or by drugs that irreversibly inhibit plasma cholinesterase [see Warnings and Precautions (5.9) ]. (etiqueta de Suxametonio (succinilcolina), Interacciones medicamentosas)

…immunodeficiency virus (HIV)/Hepatitis C virus (HCV) protease inhibitors, non-nucleoside reverse transcriptase inhibitors , and HIV/AIDS medications containing strong inhibitors or inducers of CYP3A Significant changes (increase or decrease) in the plasma concentrations of estrogen and/or progestin have been noted in some cases of co-administration with HIV protease… (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Mild or Moderate CYP3A Inhibitors: Clotrimazole, antibiotics (e.g., verapamil, diltiazem, nifedipine, nicardipine), amiodarone, danazol, ethinyl estradiol, cimetidine, lansoprazole and omeprazole May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and… (etiqueta de Tacrolimus, Interacciones medicamentosas)

Hypercalcemia in Patients with Metastatic Breast Cancer As with other additive hormonal therapy (estrogens and androgens), hypercalcemia has been reported in some breast cancer patients with bone metastases within a few weeks of starting treatment with tamoxifen. (etiqueta de Tamoxifeno, Advertencias y precauciones)

COCs have been shown to decrease plasma concentrations of acetaminophen, clofibric acid, morphine, salicylic acid, temazepam and lamotrigine. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effects of Combined Oral Contraceptives on Other Drugs COCs containing EE may inhibit the metabolism of other compounds (e.g., cyclosporine, prednisolone, theophylline, tizanidine, and voriconazole) and increase their plasma concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Effect of AUBAGIO on Oral Contraceptives AUBAGIO may increase the systemic exposures of ethinylestradiol and levonorgestrel. (etiqueta de Teriflunomida, Interacciones medicamentosas)

The dose of replacement thyroid hormone or cortisol therapy may need to be increased. (etiqueta de Norgestimato y etinilestradiol, Advertencias y precauciones)

Chronic increase in serum prolactin levels (although not evaluated in the tetrabenazine development program) has been associated with low levels of estrogen and increased risk of osteoporosis. (etiqueta de Tetrabenazina, Advertencias y precauciones)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Advise patients using oral hormonal contraceptives to switch to a non-oral contraceptive method, or add a barrier method of contraception for 4 weeks after initiation with ZEPBOUND and for 4 weeks after each dose escalation. (etiqueta de Tirzepatida, Interacciones medicamentosas)

Exercise caution when coadministering TOFIDENCE with CYP3A4 substrate drugs where decrease in effectiveness is undesirable, e.g., oral contraceptives, lovastatin, atorvastatin, etc. (etiqueta de Tocilizumab, Interacciones medicamentosas)

Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include phenytoin, barbiturates, carbamazepine, bosentan, felbamate, griseofulvin, oxcarbazepine, rifampicin, topiramate, rifabutin, rufinamide, aprepitant, and products containing St. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Ascorbic acid and acetaminophen may increase plasma EE concentrations, possibly by inhibition of conjugation. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Estrogens, including oral contraceptives: Estrogens may decrease the hepatic metabolism of certain corticosteroids, thereby increasing their effect. (etiqueta de Triamcinolona, Interacciones medicamentosas)

Advise women to follow the instructions on the initiation or resumption of hormonal contraceptives after ella intake [see Dosage and Administration(2.2) ]. (etiqueta de Ulipristal, Advertencias y precauciones)

CYP3A4 inhibitors such as itraconazole, voriconazole, fluconazole, grapefruit juice, or ketoconazole may increase plasma hormone concentrations. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…carbamazepine, phenobarbital, rifampin CYP1A2 acyclovir, allopurinol, caffeine, cimetidine, ciprofloxacin, disulfiram, enoxacin, famotidine, fluvoxamine, methoxsalen, mexiletine, norfloxacin, oral contraceptives, phenylpropanolamine, propafenone, propranolol, terbinafine, thiabendazole, ticlopidine, verapamil, zileuton montelukast, moricizine, omeprazole, phenobarbital,… (etiqueta de Warfarina, Interacciones medicamentosas)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel-blocking drugs, and isoniazid. (etiqueta de Acarbosa, Interacciones medicamentosas)

Advise women of reproductive potential to use effective birth control for the duration of ALBENZA therapy and for one month after end of therapy. (etiqueta de Albendazol, Advertencias y precauciones)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Drug products which may be affected include oral or other systemic hormonal contraceptives. (etiqueta de Bexaroteno, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Sixteen (16) drugs tested did not show an in vitro interaction with LOKELMA (allopurinol, apixaban, aspirin, captopril, cyclosporine, digoxin, ethinyl estradiol, lisinopril, magnesium, metformin, phenytoin, prednisone, propranolol, quinapril, spironolactone and ticagrelor). (etiqueta de Ciclosilicato de sodio y zirconio, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Moderate or weak CYP1A2 inhibitors include oral contraceptives and caffeine. (etiqueta de Clozapina, Interacciones medicamentosas)

These medications include thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Dapagliflozina y metformina, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Concurrent use of tetracyclines with oral contraceptives may render oral contraceptives less effective. (etiqueta de Demeclociclina, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Oral Contraceptives The effect of oral contraceptives on the pharmacokinetics of Dihydroergotamine Mesylate Injection, USP has not been studied. (etiqueta de Dihidroergotamina, Interacciones medicamentosas)

Concurrent use of tetracyclines, including doxycycline hyclate may render oral contraceptives less effective. (etiqueta de Doxiciclina, Interacciones medicamentosas)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Empagliflozina y metformina, Interacciones medicamentosas)

For oral medications that are dependent on threshold concentrations for efficacy, such as contraceptives and antibiotics, patients should be advised to take those drugs at least 1 hour before BYETTA injection. (etiqueta de Exenatida, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Glibenclamida, Interacciones medicamentosas)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etiqueta de Glibenclamida y metformina, Interacciones medicamentosas)

These drugs include thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Glipizida y metformina, Precauciones)

Drugs that may cause hypercalcemia: Vitamin D, vitamin A, thiazide diuretics, estrogen, calcipotriene and teriparatide administration may cause hypercalcemia. (etiqueta de Gluconato de calcio, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Atypical Antipsychotics (e.g., olanzapine and clozapine), Corticosteroids, Danazol, Diuretics, Estrogens, Glucagon, Isoniazid, Niacin, Oral Contraceptives, Phenothiazines, Progestogens (e.g., in oral contraceptives), Protease inhibitors, Somatropin, Sympathomimetic Agents (e.g., albuterol, epinephrine, terbutaline) and Thyroid Hormones. (etiqueta de Insulina regular (humana), Interacciones medicamentosas)

Oral Contraceptives Isotretinoin Capsules did not result in clinically significant changes in the pharmacokinetics of norethindrone and ethinyl estradiol when used concomitantly with a norethindrone and ethinyl estradiol oral contraceptive [see Clinical Pharmacology ( 12.3 )]. (etiqueta de Isotretinoína, Interacciones medicamentosas)

Potential pharmacokinetic interactions of or with levetiracetam were assessed in clinical pharmacokinetic studies (phenytoin, valproate, warfarin, digoxin, oral contraceptive, probenecid) and through pharmacokinetic screening in the placebo-controlled clinical studies in epilepsy patients. (etiqueta de Levetiracetam, Interacciones medicamentosas)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Linagliptina y metformina, Interacciones medicamentosas)

Advise patients who can become pregnant to use effective contraceptive methods prior to initiation of treatment, during treatment, and for one month after discontinuation of treatment with OPSUMIT. (etiqueta de Macitentán, Advertencias y precauciones)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etiqueta de Metformina, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

Moderate and weak CYP3A4 inhibitors include alprozalam, ameprenavir, amiodarone, aprepitant, atazanavir, cimetidine, cyclosporine, diltiazem, erythromycin, fluconazole, fluoxetine, isoniazid, oral contraceptives, quinuprestin/dalfopristin, valproic acid, and verapamil. (etiqueta de Nimodipino, Interacciones medicamentosas)

Interactions with Laboratory Tests The use of contraceptive steroids may influence the results of certain laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins. (etiqueta de Norgestimato y etinilestradiol, Interacciones medicamentosas)

…performed, the following concomitant drugs were used in at least 10% of patients in either or both Sjogren's efficacy studies: acetylsalicylic acid, artificial tears, calcium, conjugated estrogens, hydroxychloroquine sulfate, ibuprofen, levothyroxine sodium, medroxyprogesterone acetate, methotrexate, multivitamins, naproxen, omeprazole, paracetamol, and prednisone. (etiqueta de Pilocarpina, Interacciones medicamentosas)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etiqueta de Pioglitazona y metformina, Interacciones medicamentosas)

No pharmacokinetic interactions were observed between LYRICA and carbamazepine, gabapentin, lamotrigine, oral contraceptive, phenobarbital, phenytoin, topiramate, and valproic acid. (etiqueta de Pregabalina, Interacciones medicamentosas)

Examples: Atypical antipsychotics (e.g., olanzapine and clozapine), calcium channel antagonists, corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline), and… (etiqueta de Repaglinida, Interacciones medicamentosas)

Hormone Therapy Concomitant use of Risedronate sodium delayed-release with estrogens and estrogen agonist/antagonists has not been studied. (etiqueta de Risedronato, Interacciones medicamentosas)

These medications include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etiqueta de Saxagliptina y metformina, Interacciones medicamentosas)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etiqueta de Sitagliptina y metformina, Interacciones medicamentosas)

There is no information available from adequate drug-drug interaction studies with the following classes of drugs: oral contraceptives, hormone replacement therapies, hypoglycemics, phenytoins, thiazide diuretics, and calcium channel blockers. (etiqueta de Terbinafina, Interacciones medicamentosas)

Concurrent use of tetracycline may render oral contraceptives less effective. (etiqueta de Tetraciclina, Interacciones medicamentosas)

Oral Contraceptives Concurrent use of antibacterial drugs with oral contraceptives may render oral contraceptives less effective. (etiqueta de Tigeciclina, Interacciones medicamentosas)

Oral Contraceptives In vivo studies have revealed no effect of ziprasidone on the pharmacokinetics of estrogen or progesterone components. (etiqueta de Ziprasidona, Interacciones medicamentosas)

No significant interactions with digoxin, hydrochlorothiazide, hydralazine, sulfinpyrazone, oral contraceptives, tolbutamide, or warfarin have been observed. (etiqueta de Acebutolol, Interacciones medicamentosas)

Another study showed that alosetron had no clinically significant effect on plasma concentrations of the oral contraceptive agents ethinyl estradiol and levonorgestrel (CYP3A4 substrates). (etiqueta de Alosetrón, Interacciones medicamentosas)

Combination oral contraceptives Darifenacin (10 mg three times daily) had no effect on the pharmacokinetics of the combination oral contraceptives containing levonorgestrel and ethinyl estradiol [see Clinical Pharmacology (12.3)] . (etiqueta de Darifenacina, Interacciones medicamentosas)

Other Drugs: In healthy volunteers, amlodipine, phenytoin, glyburide, ranitidine, omeprazole, hormone replacement therapy (a combination of conjugated estrogens and medroxyprogesterone), antacid (aluminum and magnesium hydroxides), and theophylline did not affect the pharmacokinetics of dofetilide. (etiqueta de Dofetilida, Interacciones medicamentosas)

…clinically significant changes in concentration were observed for the following agents when co-administered with doravirine: dolutegravir, lamivudine, TDF, elbasvir and grazoprevir, ledipasvir and sofosbuvir, atorvastatin, an oral contraceptive containing ethinyl estradiol and levonorgestrel, metformin, methadone, and midazolam [see Clinical Pharmacology (12.3) ] . (etiqueta de Doravirina, Interacciones medicamentosas)

No clinically significant drug interactions have been either observed or are expected when DESCOVY is combined with the following drugs: buprenorphine, itraconazole, ketoconazole, lorazepam, methadone, midazolam, naloxone, norbuprenorphine, norgestimate/ethinyl estradiol, and sertraline. (etiqueta de Emtricitabina y tenofovir, Interacciones medicamentosas)

No clinically significant drug interactions have been observed between RPV and the following medications: acetaminophen, atorvastatin, chlorzoxazone, ethinyl estradiol, ledipasvir/sofosbuvir, norethindrone, sildenafil, simeprevir, sofosbuvir, sofosbuvir/velpatasvir, sofosbuvir/velpatasvir/voxilaprevir, or TDF. (etiqueta de Emtricitabina, rilpivirina y tenofovir, Interacciones medicamentosas)

Oral Contraceptives In the presence of fesoterodine, there are no clinically significant changes in the plasma concentrations of combined oral contraceptives containing ethinyl estradiol and levonorgestrel [see Clinical Pharmacology (12.3) ] . (etiqueta de Fesoterodina, Interacciones medicamentosas)

…sofosbuvir is used with the following drugs [see Clinical Pharmacology (12.3) ]: abacavir, atazanavir/ritonavir, cyclosporine, darunavir/ritonavir, dolutegravir, efavirenz, elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide, emtricitabine, lamivudine, methadone, midazolam, oral contraceptives, pravastatin, raltegravir, rilpivirine, tacrolimus, or verapamil. (etiqueta de Ledipasvir y sofosbuvir, Interacciones medicamentosas)

No dose adjustment is needed when SINGULAIR is co-administered with theophylline, prednisone, prednisolone, oral contraceptives, fexofenadine, digoxin, warfarin, gemfibrozil, itraconazole, thyroid hormones, sedative hypnotics, non-steroidal anti-inflammatory agents, benzodiazepines, decongestants, and Cytochrome P450 (CYP) enzyme inducers [see Clinical Pharmacology… (etiqueta de Montelukast, Interacciones medicamentosas)

Drugs without Clinically Significant Interactions with ISENTRESS In drug interaction studies, raltegravir did not have a clinically meaningful effect on the pharmacokinetics of the following: hormonal contraceptives, methadone, lamivudine, tenofovir, etravirine, darunavir/ritonavir, or boceprevir. (etiqueta de Raltegravir, Interacciones medicamentosas)

Oral contraceptives : In a study of concurrent administration of an oral contraceptive during 6 days of administration of MAXALT (10-30 mg/day) in healthy female volunteers (n=18), rizatriptan did not affect plasma concentrations of ethinyl estradiol or norethindrone. (etiqueta de Rizatriptán, Interacciones medicamentosas)

…clinically significant drug interactions have been observed with the following drugs [see Clinical Pharmacology (12.3) ]: VOSEVI: cobicistat, darunavir, elvitegravir, emtricitabine, ethinyl estradiol/norgestimate, gemfibrozil, rilpivirine, ritonavir, tenofovir alafenamide, voriconazole Sofosbuvir/velpatasvir: dolutegravir, ketoconazole, raltegravir Sofosbuvir:… (etiqueta de Sofosbuvir y velpatasvir, Interacciones medicamentosas)

Oral Contraceptives : Multiple dose administration of tiagabine (8 mg/day monotherapy) did not alter the pharmacokinetics of oral contraceptives in healthy women of child-bearing age. (etiqueta de Tiagabina, Interacciones medicamentosas)

In a single-blind, parallel-group, 3-week study in 39 healthy female subjects taking oral contraceptives, 40 mg twice daily of zafirlukast had no significant effect on ethinyl estradiol plasma concentrations or contraceptive efficacy. (etiqueta de Zafirlukast, Precauciones)

Other Concomitant Drug Therapy Drug-drug interaction studies conducted in healthy subjects between zileuton immediate-release tablets and prednisone and ethinyl estradiol (oral contraceptive), drugs known to be metabolized by the CYP3A4 isoenzyme, have shown no significant interaction. (etiqueta de Zileutón, Interacciones medicamentosas)