Bicalutamide interactions
Bicalutamide (Casodex), an androgen has 35 documented interactions across the FDA labels and fact sheets we index: 3 major, 32 moderate, 0 minor, and 0 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.
Interactions from the label
Major interactions (3)
CONTRAINDICATIONS: Precocious puberty, prostatic carcinoma or other androgen-dependent neoplasm, prior allergic reaction to HCG. (Chorionic gonadotropin label, Contraindications)
These drugs include, but are not limited to, the following: the anticonvulsants carbamazepine, oxcarbazepine, phenobarbital, phenytoin the androgen receptor inhibitor enzalutamide the antimycobacterials rifampin, rifapentine the cytotoxic agent mitotane St. (Doravirine label, Contraindications)
Because of the ability of Type II 5α-reductase inhibitors to inhibit the conversion of testosterone to 5α-dihydrotestosterone (DHT), finasteride may cause abnormalities of the external genitalia of a male fetus of a pregnant female who receives finasteride. (Finasteride label, Contraindications)
Moderate interactions (32)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
- Choriogonadotropin alfaModerate
PRECAUTIONS General Induction of androgen secretion by hCG may cause fluid retention. (Choriogonadotropin alfa label, Precautions)
Free hormone concentrations, such as testosterone and estradiol, may be decreased. (Conjugated estrogens label, Precautions)
Free hormone concentrations, such as testosterone and estradiol, may be decreased. (Conjugated estrogens and bazedoxifene label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Free hormone concentrations, such as testosterone and estradiol, may be decreased. (Estradiol and norethindrone label, Warnings and precautions)
Anabolic steroids (particularly C-17 alkylated androgens such as oxymetholone, methandrostenolone, norethandrolone, and similar compounds)—enhanced tendency toward edema. (Fludrocortisone label, Drug interactions)
- FollitropinModerate
For Men : Clinical monitoring for spermatogenesis utilizes the following indirect or direct measures: Serum testosterone level Semen analysis 5.11 FOLLISTIM Pen The FOLLISTIM Pen is intended only for use with FOLLISTIM AQ Cartridge. (Follitropin label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
…medications, pramlintide acetate, insulin, angiotensin converting enzyme (ACE) inhibitors, H 2 receptor antagonists, fibrates, propoxyphene, pentoxifylline, somatostatin analogs, anabolic steroids and androgens, cyclophosphamide, phenyramidol, guanethidine, fluconazole, sulfinpyrazone, tetracyclines, clarithromycin, disopyramide, quinolones, and those drugs… (Glimepiride label, Drug interactions)
- GoserelinModerate
Effect on QT/QTc Interval: Androgen deprivation therapy may prolong the QT interval. (Goserelin label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
- LeuprolideModerate
Tumor Flare: Increased serum testosterone (~ 50% above baseline) may occur when initiating treatment with LUPRON DEPOT. (Leuprolide label, Warnings and precautions)
Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nictonic Acid These drugs may decrease serum TBG concentration. (Levothyroxine label, Drug interactions)
Androgens/Anabolic Steroids Asparaginase Glucocorticoids Slow-Release Nicotinic Acid These drugs may decrease serum TBG concentration. (Liothyronine label, Drug interactions)
- LomitapideModerate
Weak CYP3A4 Inhibitors Weak CYP3A4 inhibitors (such as alprazolam, amiodarone, amlodipine, atorvastatin, bicalutamide, cilostazol, cimetidine, cyclosporine, fluoxetine, fluvoxamine, ginkgo, goldenseal, isoniazid, lapatinib, nilotinib, pazopanib, ranitidine, ranolazine, ticagrelor, zileuton) can increase lomitapide exposure approximately 2-fold [see Clinical Pharmacology… (Lomitapide label, Drug interactions)
However, clinical studies have shown that lovastatin does not reduce basal plasma cortisol concentration or impair adrenal reserve, and does not reduce basal plasma testosterone concentration. (Lovastatin label, Drug interactions)
The following laboratory tests may be affected by progestins including MPA Injectable Suspension, USP: (a) Plasma and urinary steroid levels are decreased (e.g., progesterone, estradiol, pregnanediol, testosterone, cortisol). (Medroxyprogesterone label, Drug interactions)
Clinical studies have shown that with co-administration of bicalutamide, mean midazolam (a CYP 3A4 substrate) levels may be increased 1.5-fold (for C max ) and 1.9-fold (for AUC). (Bicalutamide label, Drug interactions)
Some patients had serious bleeding including intracranial, retroperitoneal, and gastrointestinal requiring blood transfusion and/or administration of vitamin K. (Bicalutamide label, Warnings and precautions)
…anti-diabetic medications, pramlintide acetate, insulin, angiotensin converting enzyme (ACE) inhibitors, H2 receptor antagonists, fibrates, propoxyphene, pentoxifylline, somatostatin analogs, anabolic steroids and androgens, cyclophosphamide, phenyramidol, guanethidine, fluconazole, sulfinpyrazone, tetracyclines, clarithromycin, disopyramide, quinolones, and those drugs… (Pioglitazone and glimepiride label, Drug interactions)
Reproductive effects: Include decreased testosterone and increased prolactin levels. (Ramelteon label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Abiraterone: Spironolactone binds to the androgen receptor and may increase prostate‑specific antigen (PSA) levels in abiraterone-treated prostate cancer patients. (Spironolactone and hydrochlorothiazide label, Drug interactions)
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. (Tamoxifen label, Warnings and precautions)
- TriptorelinModerate
Tumor Flare: Transient increase in serum testosterone levels can occur within the first few weeks of treatment. (Triptorelin label, Warnings and precautions)
Some patients had serious bleeding including intracranial, retroperitoneal, and gastrointestinal requiring blood transfusion and/or administration of vitamin K. (Bicalutamide label, Warnings and precautions)
Closely monitor the Prothrombin Time (PT) and International Normalized Ratio (INR), and adjust the anticoagulant dose as needed. (Bicalutamide label, Warnings and precautions)
Check Bicalutamide against everything you take. Add your full list; every pair is checked at once.
Open in the checkerNot medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.