Megestrol: interakcje

It has not been established if there is a pharmacokinetic interaction between acitretin and combined oral contraceptives. (etykieta leku Acytretyna, Ostrzeżenie w ramce)

In addition, other known inhibitors of the renal cation transport system such as prochlorperazine, dolutegravir and megestrol should not be used in patients on dofetilide. (etykieta leku Dofetylid, Przeciwwskazania)

Dziurawiec może zmniejszać skuteczność tabletek antykoncepcyjnych. (NCCIH, St. John's Wort)

CARDIOVASCULAR AND OTHER RISKS Estrogens and progestins should not be used for the prevention of cardiovascular disease [see WARNINGS , Cardiovascular disorders ]. (etykieta leku Estradiol, Ostrzeżenie w ramce)

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. (etykieta leku Estradiol + noretysteron, Ostrzeżenie w ramce)

(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. (etykieta leku Estrogeny estryfikowane + metylotestosteron, Ostrzeżenie w ramce)

Adding a progestin to estrogen therapy has been shown to reduce the risk of endometrial hyperplasia, which may be a precursor to endometrial cancer. (etykieta leku Estrogeny skoniugowane, Ostrzeżenie w ramce)

Women taking estrogen-containing oral contraceptives may be at increased risk of becoming pregnant while on griseofulvin (see also PRECAUTIONS, Drug Interactions ) . (etykieta leku Gryzeofulwina, Przeciwwskazania)

Concomitant use of combined hormonal contraceptives ( 4.1 ) (etykieta leku Kwas traneksamowy, Przeciwwskazania)

…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… (etykieta leku Lewonorgestrel, Przeciwwskazania)

…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… (etykieta leku Lewonorgestrel + etynyloestradiol, Przeciwwskazania)

Sensitive CYP3A substrates including hormonal contraceptives: Avoid concomitant use with substrates that have narrow therapeutic index. (etykieta leku Mitapiwat, Interakcje z innymi lekami)

Hormonal contraceptives: Avoid concomitant use with LYSODREN. (etykieta leku Mitotan, Interakcje z innymi lekami)

Breast cancer or other estrogen- or progestin-sensitive cancer ( 4 ) (etykieta leku Norelgestromin + etynyloestradiol, Przeciwwskazania)

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. (etykieta leku Tyzanidyna, Interakcje z innymi lekami)

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. (etykieta leku Worykonazol, Interakcje z innymi lekami)

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… (etykieta leku Alogliptyna + metformina, Interakcje z innymi lekami)

Estrogen Estrogen containing oral contraceptives decrease theophylline clearance in a dose-dependent fashion. (etykieta leku Aminofilina, Interakcje z innymi lekami)

• Oral Contraceptives: May increase plasma levels of norethindrone and ethinyl estradiol; consider this effect when selecting an oral contraceptive ( 7.5 ). (etykieta leku Amlodypina + atorwastatyna, Interakcje z innymi lekami)

Amoxicillin may reduce the efficacy of oral contraceptives. (etykieta leku Amoksycylina, Interakcje z innymi lekami)

Amoxicillin and Clavulanate Potassium Extended Release Tablets may reduce efficacy of oral contraceptives. (etykieta leku Amoksycylina + kwas klawulanowy, Interakcje z innymi lekami)

Oral Contraceptives : May be less effective and increased breakthrough bleeding may occur. (etykieta leku Ampicylina, Interakcje z innymi lekami)

Hormonal Contraceptives : Efficacy of contraceptives may be reduced during and for 28 days following administration of aprepitant. (etykieta leku Aprepitant, Ostrzeżenia i środki ostrożności)

Hormonal contraceptives: ethinyl estradiol and norgestimate or norethindrone ↓ ethinyl estradiol ↑ norgestimate c ↑ ethinyl estradiol ↑ norethindrone d Use caution if considering coadministration of oral contraceptives with REYATAZ or REYATAZ with ritonavir. (etykieta leku Atazanawir, Interakcje z innymi lekami)

• Oral Contraceptives: May increase plasma levels of norethindrone and ethinyl estradiol; consider this effect when selecting an oral contraceptive ( 7.3 ). (etykieta leku Atorwastatyna, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Hormonal contraceptives: TRACLEER use decreases contraceptive exposure and reduces effectiveness ( 7.2 ). (etykieta leku Bosentan, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Oral Contraceptives: Effectiveness of hormonal oral contraceptives may be reduced when administered concomitantly with XCOPRI. (etykieta leku Cenobamat, Interakcje z innymi lekami)

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. (etykieta leku Chinina, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

…itraconazole clarithromycin Amiodarone verapamil ketoconazole erythromycin Bromocriptine voriconazole quinupristin/ dalfopristin colchicine danazol imatinib metoclopramide nefazodone oral contraceptives HIV Protease Inhibitors The HIV protease inhibitors (e.g., indinavir, nelfinavir, ritonavir, and saquinavir) are known to inhibit cytochrome P-450 3A and thus could… (etykieta leku Cyklosporyna, Interakcje z innymi lekami)

Hormonal contraceptives : Effective alternative (non-hormonal) contraceptive method or a barrier method of contraception is recommended [see Use in Specific Populations (8.3) ] . ethinyl estradiol, norethindrone, drospirenone ↓ ethinyl estradiol ↓ norethindrone drospirenone: effects unknown For co-administration with drospirenone, clinical monitoring is recommended… (etykieta leku Darunawir, Interakcje z innymi lekami)

Hormonal contraceptives: Additional or alternative (non-hormonal) forms of contraception should be considered when estrogen-containing contraceptives are co-administered with PREZCOBIX or PREZCOBIX PED [see Use in Specific Populations (8.3) ] . drospirenone/ethinylestradiol ↑ drospirenone ↓ ethinylestradiol For co-administration with drospirenone, clinical monitoring… (etykieta leku Darunawir + kobicystat, Interakcje z innymi lekami)

…budesonide, buspirone, conivaptan, cyclosporine, darifenacin, darunavir, dasatinib, dihydroergotamine, dronedarone, eletriptan, eplerenone, ergotamine, everolimus, felodipine, fentanyl, hormonal contraceptive agents, indinavir, fluticasone, lopinavir, lovastatin, lurasidone, maraviroc, midazolam, nisoldipine, pimozide, quetiapine, quinidine, saquinavir, sildenafil,… (etykieta leku Deferazyroks, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Effects of Other Drugs on Combined Hormonal Contraceptives Substances decreasing the plasma concentrations of COCs and potentially diminishing the efficacy 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 CHCs or increase… (etykieta leku Dezogestrel + etynyloestradiol, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives, methotrexate: Monitoring of valproate concentrations is recommended ( 7.1 ) (etykieta leku Diwalproeks (walproinian), Interakcje z innymi lekami)

…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 )] . (etykieta leku Dolutegrawir, Interakcje z innymi lekami)

COCs containing DRSP may be associated with a higher risk of venous thromboembolism (VTE) than COCs containing levonorgestrel or some other progestins. (etykieta leku Drospirenon + etynyloestradiol, Ostrzeżenia i środki ostrożności)

For patients with CF taking hormonal contraceptives who develop rash, consider interrupting TRIKAFTA and hormonal contraceptives. (etykieta leku Eleksakaftor + tezakaftor + iwakaftor, Interakcje z innymi lekami)

Hormonal Contraceptives: drospirenone/ethinyl estradiol levonorgestrel norgestimate/ethinyl estradiol ↑ drospirenone ↑ norgestimate ↑ levonorgestrel ↓ ethinyl estradiol Additional or alternative non-hormonal forms of contraception should be considered when estrogen based contraceptives are coadministered with GENVOYA. (etykieta leku Elwitegrawir + kobicystat + emtrycytabina + tenofowir, Interakcje z innymi lekami)

Hormonal Contraceptives: APTIOM may decrease the effectiveness of hormonal contraceptives. (etykieta leku Eslikarbazepina, Interakcje z innymi lekami)

• Women taking DUAVEE should not take progestins, additional estrogens or additional estrogen agonist/antagonists ( 5.1 ) (etykieta leku Estrogeny skoniugowane + bazedoksyfen, Ostrzeżenia i środki ostrożności)

Effects of Felbatol ® on Low-Dose Combination Oral Contraceptives A group of 24 nonsmoking, healthy white female volunteers established on an oral contraceptive regimen containing 30 µg ethinyl estradiol and 75 µg gestodene for at least 3 months received 2400 mg/day of felbamate from midcycle (day 15) to midcycle (day 14) of two consecutive oral contraceptive… (etykieta leku Felbamat, Interakcje z innymi lekami)

Oral Contraceptives Clinical Impact Co-administration of multiple-dose phentermine and topiramate extended-release capsules 15 mg/92 mg once daily with a single dose of oral contraceptive containing 35 µg ethinyl estradiol (estrogen component) and 1 mg norethindrone (progestin component), in obese otherwise healthy volunteers, decreased the exposure of ethinyl… (etykieta leku Fentermina + topiramat, Interakcje z innymi lekami)

Warfarin Increased and decreased PT/INR responses have been reported when phenytoin is coadministered with warfarin Other Corticosteroids, doxycycline, estrogens, furosemide, oral contraceptives, paroxetine, quinidine, rifampin, sertraline, theophylline, and vitamin D Drugs whose level is decreased by phenytoin Anticoagulants Apixaban, dabigatran, edoxaban, rivaroxaban… (etykieta leku Fenytoina, Interakcje z innymi lekami)

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. (etykieta leku Flibanseryna, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Oral contraceptives Two pharmacokinetic studies with a combined oral contraceptive have been performed using multiple doses of fluconazole. (etykieta leku Flukonazol, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Hormonal Contraceptives: Efficacy of contraceptives may be reduced during treatment and for 1 month following administration of the last dose of either fosaprepitant or oral aprepitant. (etykieta leku Fosaprepitant, Ostrzeżenia i środki ostrożności)

Other Corticosteroids, doxycycline, estrogens, furosemide, oral contraceptives, paroxetine, quinidine, rifampin, sertraline, theophylline, and vitamin D Drugs whose level is decreased by phenytoin Anticoagulants Apixaban, dabigatran, edoxaban, rivaroxaban Antiepileptic drugs The effect of phenytoin on phenobarbital, valproic acid and sodium valproate serum levels… (etykieta leku Fosfenytoina, Interakcje z innymi lekami)

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). (etykieta leku Gabapentyna, Interakcje z innymi lekami)

…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. (etykieta leku Glimepiryd, Interakcje z innymi lekami)

…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),… (etykieta leku Glipizyd, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

…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),… (etykieta leku Insulina aspart, Interakcje z innymi lekami)

…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),… (etykieta leku Insulina degludec, Interakcje z innymi lekami)

…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),… (etykieta leku Insulina detemir, Interakcje z innymi lekami)

…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),… (etykieta leku Insulina glargine, Interakcje z innymi lekami)

…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),… (etykieta leku Insulina lispro, Interakcje z innymi lekami)

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 )] . (etykieta leku Kabotegrawir, Interakcje z innymi lekami)

EQUETRO can reduce the effectiveness of hormonal contraceptives. (etykieta leku Karbamazepina, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Plasma cholinesterase activity may be decreased by chronic administration of certain monoamine oxidase inhibitors, oral contraceptives, glucocorticoids, antimyasthenics (neostigmine), cyclophosphamide, and possibly thiotepa. (etykieta leku Kokaina, Interakcje z innymi lekami)

Concomitant use with colesevelam hydrochloride may decrease the exposure of the following drugs: Drugs with a narrow therapeutic index (e.g., cyclosporine), phenytoin, thyroid hormone replacement therapy, warfarin, oral contraceptives containing ethinyl estradiol and norethindrone, olmesartan medoxomil, and sulfonylureas (glimepiride, glipizide, glyburide). (etykieta leku Kolesewelam, Interakcje z innymi lekami)

Drug Interactions Cholestyramine for Oral Suspension USP may delay or reduce the absorption of concomitant oral medication such as phenylbutazone, warfarin, thiazide diuretics (acidic), or propranolol (basic), as well as tetracycline, penicillin G, phenobarbital, thyroid and thyroxine preparations, estrogens and progestins, and digitalis. (etykieta leku Kolestyramina, Interakcje z innymi lekami)

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. (etykieta leku Kwas ursodeoksycholowy, Interakcje z innymi lekami)

Aspirin, carbapenem antibiotics, estrogen-containing hormonal contraceptives: Monitoring of valproate concentrations is recommended (7.1) (etykieta leku Kwas walproinowy, Interakcje z innymi lekami)

Concomitant Use with Estrogen-Containing Products, Including Oral Contraceptives Some estrogen-containing oral contraceptives have been shown to decrease serum concentrations of lamotrigine [see Clinical Pharmacology ( 12.3 )] . (etykieta leku Lamotrygina, Ostrzeżenia i środki ostrożności)

Effect on Oral Contraceptives Teriflunomide may increase the systemic exposures of ethinylestradiol and levonorgestrel. (etykieta leku Leflunomid, Interakcje z innymi lekami)

…Drugs That May Alter T 4 and Triiodothyronine (T 3 ) Serum Transport Without Effecting Free Thyroxine (FT 4 ) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (etykieta leku Lewotyroksyna, Interakcje z innymi lekami)

Estrogen, Oral Contraceptives — Estrogens tend to increase serum thyroxine-binding globulin (TBg). (etykieta leku Lewotyroksyna + liotyronina, Interakcje z innymi lekami)

Table 2: Drugs That May Alter Triiodothyronine (T3) Serum Transport Without Affecting Free Thyroxine (FT4) Concentration (Euthyroidism) Drug or Drug Class Effect Clofibrate Estrogen-containing oral contraceptives Estrogens (oral) Heroin/Methadone 5-Fluorouracil Mitotane Tamoxifen These drugs may increase serum thyroxine-binding globulin (TBG) concentration. (etykieta leku Liotyronina, Interakcje z innymi lekami)

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) ]. (etykieta leku Lomitapid, Ostrzeżenia i środki ostrożności)

Advise females of reproductive potential to use an effective non-hormonal method of contraception, since LORBRENA can render hormonal contraceptives ineffective, during treatment with LORBRENA and for at least 6 months after the final dose. (etykieta leku Lorlatynib, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Mycophenolate mofetil may reduce effectiveness of oral contraceptives. (etykieta leku Mykofenolan, Interakcje z innymi lekami)

When these oral contraceptives are used for hormonal regulation during nevirapine therapy, the therapeutic effect of the hormonal therapy should be monitored. (etykieta leku Newirapina, Interakcje z innymi lekami)

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. (etykieta leku Nintedanib, Ostrzeżenia i środki ostrożności)

Hormonal contraceptive ethinyl estradiol ↓ ethinyl estradiol An additional, non-hormonal method of contraception should be considered during the 5 days of PAXLOVID treatment and until one menstrual cycle after stopping PAXLOVID. (etykieta leku Nirmatrelwir + rytonawir, Interakcje z innymi lekami)

• Effects of Other Drugs on Hormonal Contraceptives Substances decreasing the systemic concentrations of hormonal contraceptives (HCs) and potentially diminishing the efficacy of HCs: Drugs or herbal products that induce certain enzymes, including cytochrome P450 3A4 (CYP3A4), may decrease the systemic concentrations of HCs and potentially diminish the effectiveness… (etykieta leku Noretysteron, Interakcje z innymi lekami)

Effects of Other Drugs on Combined Oral Contraceptives Substances decreasing the plasma concentrations of COCs and potentially diminishing the efficacy 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… (etykieta leku Norgestrel + etynyloestradiol, Interakcje z innymi lekami)

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. (etykieta leku Norgestymat + etynyloestradiol, Interakcje z innymi lekami)

Oral Contraceptive: TRILEPTAL may decrease the effectiveness of hormonal contraceptives ( 7.3 ) (etykieta leku Okskarbazepina, Interakcje z innymi lekami)

Intervention: Decreased bioavailability may potentially diminish the effectiveness of combined oral contraceptives (COCs) or increase breakthrough bleeding. (etykieta leku Oktreotyd, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Contraceptives: 12 mg once daily may decrease the effectiveness of hormonal contraceptives containing levonorgestrel ( 7.1 ) (etykieta leku Perampanel, Interakcje z innymi lekami)

…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. (etykieta leku Pioglitazon + glimepiryd, Interakcje z innymi lekami)

Sensitive CYP3A4 Substrates (including hormonal contraceptives): WAKIX may reduce effectiveness of sensitive CYP3A4 substrates. (etykieta leku Pitolisant, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

Therefore, the relevance of the WHI findings regarding adverse cardiovascular events to lower CE plus other MPA doses, other routes of administration, or other estrogen plus progestogen products is not known. (etykieta leku Progesteron, Ostrzeżenia)

History of Hypertriglyceridemia when Treated with Estrogens Limited clinical data suggest that some women with a history of marked hypertriglyceridemia (>5.6 mmol/L or >500 mg/dL) in response to treatment with oral estrogen or estrogen plus progestin may develop increased levels of triglycerides when treated with EVISTA. (etykieta leku Raloksyfen, Ostrzeżenia i środki ostrożności)

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. (etykieta leku Roflumilast, Interakcje z innymi lekami)

Telaprevir Decrease AUC by 92% Systemic Hormonal Contraceptives Prevention or Management: Advise patients to change to non-hormonal methods of birth control during rifampin therapy Estrogens Decrease exposure Progestins Anticonvulsants Phenytoin Administered with rifampin 450 mg daily Decrease exposure Antiarrhythmics Disopyramide Decrease exposure Mexiletine… (etykieta leku Ryfampicyna, Interakcje z innymi lekami)

Hormonal Contraceptives PRIFTIN may reduce the effectiveness of hormonal contraceptives. (etykieta leku Ryfapentyna, Interakcje z innymi lekami)

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) ]. (etykieta leku Ryluzol, Interakcje z innymi lekami)

Oral Contraceptives or Patch Contraceptives: ethinyl estradiol ↓ ethinyl estradiol Alternate methods of contraception should be considered. (etykieta leku Rytonawir, Interakcje z innymi lekami)

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. (etykieta leku Sugammadeks, Interakcje z innymi lekami)

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) ]. (etykieta leku Suksametonium, Interakcje z innymi lekami)

Risk of Drug Interactions with Certain Hormonal Contraceptives JOURNAVX-treated patients taking concomitant hormonal contraceptives containing progestins other than levonorgestrel and norethindrone should use additional nonhormonal contraceptives (such as condoms) or use alternative contraceptives (e.g., a combined oral contraceptive containing ethinyl estradiol… (etykieta leku Suzetrygina, Ostrzeżenia i środki ostrożności)

Estrogen Estrogen containing oral contraceptives decrease theophylline clearance in a dose-dependent fashion. (etykieta leku Teofilina, Interakcje z innymi lekami)

Effect of AUBAGIO on Oral Contraceptives AUBAGIO may increase the systemic exposures of ethinylestradiol and levonorgestrel. (etykieta leku Teryflunomid, Interakcje z innymi lekami)

Exercise caution when coadministering TOFIDENCE with CYP3A4 substrate drugs where decrease in effectiveness is undesirable, e.g., oral contraceptives, lovastatin, atorvastatin, etc. (etykieta leku Tocilizumab, Interakcje z innymi lekami)

Patients taking estrogen-containing or progestin-only contraceptives should be asked to report any change in their bleeding patterns. (etykieta leku Topiramat, Interakcje z innymi lekami)

Laboratory evaluation for adrenal insufficiency and consideration of replacement or stress doses of a rapidly acting glucocorticoid are strongly recommended in such patients. (etykieta leku Megestrol, Ostrzeżenia i środki ostrożności)

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. (etykieta leku Tyrzepatyd, Interakcje z innymi lekami)

Advise women to follow the instructions on the initiation or resumption of hormonal contraceptives after ella intake [see Dosage and Administration(2.2) ]. (etykieta leku Uliprystal, Ostrzeżenia i środki ostrożności)

…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,… (etykieta leku Warfaryna, Interakcje z innymi lekami)

Oral Contraceptives: Decreased efficacy possibly resulting in pregnancy; use a different or additional form of contraception. (etykieta leku Zasadowy cytrynian bizmutu + metronidazol + tetracyklina, Interakcje z innymi lekami)

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. (etykieta leku Akarboza, Interakcje z innymi lekami)

Drug products which may be affected include oral or other systemic hormonal contraceptives. (etykieta leku Beksaroten, Interakcje z innymi lekami)

These medications include thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etykieta leku Dapagliflozyna + metformina, Interakcje z innymi lekami)

Concurrent use of tetracyclines with oral contraceptives may render oral contraceptives less effective. (etykieta leku Demeklocyklina, Interakcje z innymi lekami)

Oral Contraceptives The effect of oral contraceptives on the pharmacokinetics of Dihydroergotamine Mesylate Injection, USP has not been studied. (etykieta leku Dihydroergotamina, Interakcje z innymi lekami)

Concurrent use of tetracyclines, including doxycycline hyclate may render oral contraceptives less effective. (etykieta leku Doksycyklina, Interakcje z innymi lekami)

Hormonal contraceptives: Oral Ethinyl estradiol/ Norgsetimate Implant Etonogestrel ↑ active metabolites of norgestimate * ↓ etonogestrel A reliable method of barrier contraception should be used in addition to hormonal contraceptives. (etykieta leku Efawirenz, Interakcje z innymi lekami)

Hormonal contraceptives: Oral Ethinyl estradiol/ Norgestimate ↓ active metabolites of norgestimate A reliable method of barrier contraception should be used in addition to hormonal contraceptives. (etykieta leku Efawirenz + lamiwudyna + tenofowir, Interakcje z innymi lekami)

In the comparative study in advanced breast cancer patients, CTC grade 3 or 4 elevation of gamma glutamyl transferase without documented evidence of liver metastasis was reported in 2.7% of patients treated with EXEMESTANE and in 1.8% of patients treated with megestrol acetate. (etykieta leku Eksemestan, Ostrzeżenia i środki ostrożności)

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. (etykieta leku Empagliflozyna + metformina, Interakcje z innymi lekami)

Effects of Other Drugs on Combined Oral Contraceptives Substances diminishing the efficacy of COCs: Dienogest is a substrate of CYP3A4. (etykieta leku Estradiol + dienogest, Interakcje z innymi lekami)

Oral contraceptives: Ethinyl estradiol/norethindrone a Alternative methods of non-hormonal contraception are recommended. (etykieta leku Fosamprenawir, Interakcje z innymi lekami)

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. (etykieta leku Glibenklamid, Interakcje z innymi lekami)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etykieta leku Glibenklamid + metformina, Interakcje z innymi lekami)

These drugs include thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid. (etykieta leku Glipizyd + metformina, Środki ostrożności)

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. (etykieta leku Insulina ludzka krótko działająca, Interakcje z innymi lekami)

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 )]. (etykieta leku Izotretynoina, Interakcje z innymi lekami)

Effect of SYMPAZAN ® on Other Drugs Hormonal Contraceptives SYMPAZAN ® is a weak CYP3A4 inducer. (etykieta leku Klobazam, Interakcje z innymi lekami)

Moderate or weak CYP1A2 inhibitors include oral contraceptives and caffeine. (etykieta leku Klozapina, Interakcje z innymi lekami)

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. (etykieta leku Lewetyracetam, Interakcje z innymi lekami)

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. (etykieta leku Linagliptyna + metformina, Interakcje z innymi lekami)

Contraceptive: ethinyl estradiol* ↓ ethinyl estradiol Because contraceptive steroid concentrations may be altered when KALETRA is co-administered with oral contraceptives or with the contraceptive patch, alternative methods of nonhormonal contraception are recommended. (etykieta leku Lopinawir + rytonawir, Interakcje z innymi lekami)

Changes in Contraceptive Effectiveness Associated with Co-Administration of Other Products If a woman on hormonal contraceptives takes a drug or herbal product that induces enzymes, including CYP3A4, that metabolize contraceptive hormones, counsel her to use additional contraception or a different method of contraception. (etykieta leku Medroksyprogesteron, Interakcje z innymi lekami)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etykieta leku Metformina, Interakcje z innymi lekami)

Drug interaction studies were conducted in adult patients to investigate the effect of coadministered drugs on the pharmacokinetics of mirabegron and the effect of mirabegron on the pharmacokinetics of coadministered drugs (e.g., ketoconazole, rifampin, solifenacin succinate, tamsulosin, and oral contraceptives) [see Clinical Pharmacology ( 12.3 )] . (etykieta leku Mirabegron, Interakcje z innymi lekami)

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. (etykieta leku Nimodypina, Interakcje z innymi lekami)

Changes in Contraceptive Effectiveness Associated with Co-Administration of Other Products If a woman on hormonal contraceptives takes a drug or herbal product that induces enzymes, including CYP3A4, that metabolize contraceptive hormones, counsel her to use additional contraception or a different method of contraception. (etykieta leku Noretysteron + etynyloestradiol, Interakcje z innymi lekami)

These drugs include the thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etykieta leku Pioglitazon + metformina, Interakcje z innymi lekami)

No pharmacokinetic interactions were observed between LYRICA and carbamazepine, gabapentin, lamotrigine, oral contraceptive, phenobarbital, phenytoin, topiramate, and valproic acid. (etykieta leku Pregabalina, Interakcje z innymi lekami)

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… (etykieta leku Repaglinid, Interakcje z innymi lekami)

Hormonal contraceptives may be less effective with BANZEL; use additional non-hormonal forms of contraception ( 7.3 ) (etykieta leku Rufinamid, Interakcje z innymi lekami)

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. (etykieta leku Saksagliptyna + metformina, Interakcje z innymi lekami)

Examples: Thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blockers, and isoniazid. (etykieta leku Sytagliptyna + metformina, Interakcje z innymi lekami)

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. (etykieta leku Terbinafina, Interakcje z innymi lekami)

Concurrent use of tetracycline may render oral contraceptives less effective. (etykieta leku Tetracyklina, Interakcje z innymi lekami)

Oral Contraceptives Concurrent use of antibacterial drugs with oral contraceptives may render oral contraceptives less effective. (etykieta leku Tygecyklina, Interakcje z innymi lekami)

Oral Contraceptives In vivo studies have revealed no effect of ziprasidone on the pharmacokinetics of estrogen or progesterone components. (etykieta leku Zyprazydon, Interakcje z innymi lekami)

No significant interactions with digoxin, hydrochlorothiazide, hydralazine, sulfinpyrazone, oral contraceptives, tolbutamide, or warfarin have been observed. (etykieta leku Acebutolol, Interakcje z innymi lekami)

Another study showed that alosetron had no clinically significant effect on plasma concentrations of the oral contraceptive agents ethinyl estradiol and levonorgestrel (CYP3A4 substrates). (etykieta leku Alosetron, Interakcje z innymi lekami)

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)] . (etykieta leku Daryfenacyna, Interakcje z innymi lekami)

…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) ] . (etykieta leku Dorawiryna, Interakcje z innymi lekami)

No clinically significant drug interactions have been observed between TDF and the following medications: entecavir, methadone, oral contraceptives, ribavirin, sofosbuvir, or tacrolimus in studies conducted in healthy subjects. (etykieta leku Emtrycytabina + rylpiwiryna + tenofowir, Interakcje z innymi lekami)

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) ] . (etykieta leku Fezoterodyna, Interakcje z innymi lekami)

Zidovudine and Rifabutin No dosage adjustment for zidovudine and rifabutin is needed when megestrol acetate is coadministered with these drugs [See Clinical Pharmacology ( 12.3 )] . (etykieta leku Megestrol, Interakcje z innymi lekami)

…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. (etykieta leku Ledipaswir + sofosbuwir, Interakcje z innymi lekami)

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… (etykieta leku Montelukast, Interakcje z innymi lekami)

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. (etykieta leku Raltegrawir, Interakcje z innymi lekami)

Zidovudine and Rifabutin No dosage adjustment for zidovudine and rifabutin is needed when megestrol acetate is coadministered with these drugs [See Clinical Pharmacology ( 12.3 )] . (etykieta leku Megestrol, Interakcje z innymi lekami)

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. (etykieta leku Ryzatryptan, Interakcje z innymi lekami)

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. (etykieta leku Tiagabina, Interakcje z innymi lekami)

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. (etykieta leku Zafirlukast, Środki ostrożności)

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. (etykieta leku Zileuton, Interakcje z innymi lekami)

Zidovudine and Rifabutin No dosage adjustment for zidovudine and rifabutin is needed when megestrol acetate is coadministered with these drugs [See Clinical Pharmacology ( 12.3 )] . (etykieta leku Megestrol, Interakcje z innymi lekami)