Head-to-head clinical analysis & difference comparison: details on mechanism of action, dosing, half-life, interactions, and maternal-fetal safety.
DANAZOL vs ANDROID-F
Clinician-reviewed, head-to-head comparison of mechanism, dosing, pharmacokinetics, and safety profiles.
Last clinically reviewed: July 2026 · OpiCalc Medical Review Team
Danazol is a synthetic androgen derived from ethisterone that suppresses pituitary-ovarian axis by inhibiting gonadotropin release, leading to decreased estrogen and progesterone levels. It also has weak androgenic and progestational activity.
Fingolimod is a sphingosine 1-phosphate receptor modulator that sequesters lymphocytes in lymph nodes, reducing central nervous system immune cell infiltration.
FDA: Treatment of endometriosis, fibrocystic breast disease, hereditary angioedema,Off-label: Idiopathic thrombocytopenic purpura, precocious puberty, gynecomastia
Relapsing forms of multiple sclerosis (MS), including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease
300-600 mg orally twice daily; maximum 800 mg/day
Adults: 1 tablet (methyltestosterone 2.5 mg, ethinyl estradiol 0.025 mg) orally once daily, with food.
Terminal elimination half-life is 4-4.5 hours; clinical context: requires multiple daily dosing to maintain therapeutic levels.
2.5-3.5 hours (terminal half-life); oral administration may require multiple daily doses for stable levels.
Primarily hepatic: undergoes oxidation and conjugation via CYP3A4, with metabolites excreted in urine and feces.
Metabolized primarily by CYP4F2, with minor contributions from CYP2D6, CYP2E1, CYP3A4, and CYP1A2. Undergoes biotransformation to an inactive metabolite.
Primarily hepatic metabolism; approximately 60% excreted in feces, 30% in urine as metabolites.
Primarily renal (90% as glucuronide and sulfate conjugates, 10% unchanged); small amount biliary/fecal.
Highly protein bound: 97-99%, primarily to albumin.
97-99% bound to sex hormone-binding globulin (SHBG) and albumin.
Approximately 1.5 L/kg; indicates extensive distribution into tissues, exceeding total body water.
0.5-0.8 L/kg; reflects distribution into muscle, liver, and reproductive tissues.
Oral bioavailability is approximately 100% due to extensive absorption, but first-pass metabolism reduces systemic availability to about 70-80%.
Oral: 3-6% (extensive first-pass metabolism); IM: 100%.
No adjustment required for GFR ≥10 m L/min; avoid use in GFR <10 m L/min due to fluid retention risk
GFR 10-50 m L/min: reduce dose by 50%. GFR <10 m L/min: avoid use.
Child-Pugh A: no adjustment; Child-Pugh B: reduce dose by 50%; Child-Pugh C: contraindicated
Child-Pugh A: reduce dose by 50%. Child-Pugh B: avoid use. Child-Pugh C: contraindicated.
2-5 mg/kg/dose orally twice daily; maximum 400 mg/day
Not recommended for use in children due to risk of premature epiphyseal closure and virilization.
Start at low end of adult dose, titrate cautiously due to increased risk of fluid retention and thromboembolism
Use with caution; consider lower starting dose due to increased risk of fluid retention, hypertension, and prostatic hypertrophy in males.
Danazol may cause thrombotic events, including pulmonary embolism and thrombophlebitis. It is contraindicated in patients with a history of thrombosis.
Risk of bradyarrhythmia and atrioventricular block, requiring first-dose monitoring for 6 hours. Fatal infections, including opportunistic infections, have occurred. Macular edema has been reported.
Hepatotoxicity (monitor LFTs), pseudotumor cerebri (benign intracranial hypertension), androgenic effects (hirsutism, acne, voice deepening), lipid changes (decreased HDL, increased LDL), thromboembolic events, and premature closure of epiphyses in children.
May cause bradycardia and AV block; monitor heart rate after first dose. Increased risk of infections, including herpes viruses and cryptococcal meningitis. Macular edema, especially in patients with diabetes or uveitis. Posterior reversible encephalopathy syndrome (PRES). Respiratory effects, including decreased FEV1 and DLCO. Hepatic injury; monitor liver enzymes.
Pregnancy, lactation, porphyria, severe hepatic/renal/cardiac disease, undiagnosed abnormal genital bleeding, history of thromboembolic disorders, androgen-dependent tumors.
Recent myocardial infarction, unstable angina, stroke, transient ischemic attack, decompensated heart failure, history of Mobitz type II 2nd or 3rd degree AV block, sick sinus syndrome unless pacemaker is present, or severe untreated sleep apnea.
Take with food or milk to minimize gastrointestinal irritation. Avoid grapefruit juice as it may alter drug metabolism. Limit alcohol consumption due to increased risk of hepatotoxicity.
No significant food interactions reported. Avoid excessive alcohol consumption due to hepatotoxic effects.
Danazol is contraindicated in pregnancy. First trimester exposure is associated with virilization of female fetus including clitoromegaly, labioscrotal fusion, and urogenital sinus abnormalities. Risk in second and third trimesters is also significant due to androgenic effects; fetal growth restriction and preterm birth may occur. No safe gestational period exists.
ANDROID-F contains methyltestosterone, a synthetic androgen. Androgens are teratogenic in humans. In first trimester: masculinization of female fetus, including clitoromegaly, labial fusion, and urogenital sinus abnormalities. Second and third trimesters: continued virilization of female fetus; no increased risk of malformations in male fetuses. Contraindicated in pregnancy.
Danazol is excreted in human milk; M/P ratio not determined. Potential for adverse effects in breastfed infant (e.g., androgenization). Use is contraindicated during breastfeeding due to risk of virilization and other hormonal effects.
Methyltestosterone is excreted in breast milk. No specific M/P ratio available. May cause virilization in female infants and precocious development in male infants. Breastfeeding is contraindicated during therapy.
Danazol is contraindicated in pregnancy; no dose adjustment recommendations exist. If inadvertently used during pregnancy, discontinue immediately and monitor for fetal effects. Pharmacokinetic changes in pregnancy are not studied; dose modifications are not applicable due to contraindication.
ANDROID-F is contraindicated in pregnancy; no dosing recommendations for use in pregnancy. No established dose adjustments exist as the drug should not be administered.
Monitor liver function tests; androgenic effects (acne, hirsutism, voice deepening) may occur; use with caution in patients with cardiac or renal impairment; may potentiate warfarin; effective for hereditary angioedema prophylaxis; check pregnancy test before initiation due to teratogenicity.
Android-F is a brand of methyltestosterone, an androgen used primarily for male hypogonadism. Monitor liver function due to potential hepatotoxicity. Avoid in males with breast or prostate cancer. Use with caution in older patients due to increased risk of prostatic hypertrophy. May suppress clotting factors II, V, VII, and X.
Do not take if pregnant or planning pregnancy; use effective contraception.,Report symptoms of liver toxicity (jaundice, dark urine, abdominal pain) immediately.,Avoid alcohol as it may increase hepatotoxicity risk.,May cause weight gain, acne, or voice changes; report if bothersome.,Take with food to reduce GI upset.,Use sunscreen due to photosensitivity risk.,Do not discontinue abruptly; taper under medical supervision.
Take exactly as prescribed; do not increase dose or frequency.,Report any signs of liver problems (yellowing eyes/skin, dark urine, persistent nausea) immediately.,Women should report hoarseness, acne, or menstrual changes.,Men should report frequent or persistent erections, or breast swelling/tenderness.,May cause decreased sperm count in men; discuss family planning.,Avoid concurrent use with other medications without consulting doctor.
"Formestane, an aromatase inhibitor, reduces estrogen synthesis, while danazol, a synthetic androgen, possesses weak androgenic and anabolic activity. Concomitant use may lead to additive fluid retention due to danazol's mineralocorticoid-like effects and formestane's potential to cause fluid retention through estrogen withdrawal. This can result in peripheral edema, hypertension, or exacerbation of heart failure in susceptible patients."
"Danazol, a synthetic androgen with weak androgenic activity, may reduce the therapeutic efficacy of vildagliptin, a dipeptidyl peptidase-4 (DPP-4) inhibitor used for glycemic control in type 2 diabetes. The proposed mechanism involves danazol-induced activation of cytochrome P450 enzymes (particularly CYP3A4) and potential upregulation of glucagon counter-regulatory pathways, leading to increased vildagliptin clearance and diminished inhibition of DPP-4. Clinically, this interaction may result in elevated postprandial glucose levels and reduced HbA1c reduction, compromising glycemic management."
"Danazol, an androgenic steroid, can induce hepatic microsomal enzymes, particularly CYP2C9, which accelerates the metabolism of glipizide, a sulfonylurea antidiabetic agent. This increased clearance reduces glipizide's plasma concentrations, diminishing its insulinotropic effect and potentially leading to hyperglycemia and loss of glycemic control in patients with type 2 diabetes mellitus."
No interactions on record
Explore head-to-head clinical comparisons of other medications in the same therapeutic classes.
Common clinical questions about DANAZOL vs ANDROID-F, answered by our medical review team.
DANAZOL is a Androgen/Antigonadotropin that works by Danazol is a synthetic androgen derived from ethisterone that suppresses pituitary-ovarian axis by inhibiting gonadotropin release, leading to decreased estrogen and progesterone levels. It also has weak androgenic and progestational activity.. ANDROID-F is a Androgen/Estrogen Combination that works by Fingolimod is a sphingosine 1-phosphate receptor modulator that sequesters lymphocytes in lymph nodes, reducing central nervous system immune cell infiltration.. They differ in pharmacokinetic profiles, FDA-approved indications, and side effect profiles.
Potency comparisons between DANAZOL and ANDROID-F depend on the specific clinical indication. These are agents from distinct pharmacological classes and are not directly interchangeable by dose. A physician or clinical pharmacist should guide any therapeutic switching decisions.
The standard adult dose of DANAZOL is: 300-600 mg orally twice daily; maximum 800 mg/day. The standard adult dose of ANDROID-F is: Adults: 1 tablet (methyltestosterone 2.5 mg, ethinyl estradiol 0.025 mg) orally once daily, with food.. Dosing should always be individualized based on indication, renal and hepatic function, age, and other patient factors.
No direct drug-drug interaction has been formally documented between DANAZOL and ANDROID-F in current clinical databases. However, individual patient risk factors including other medications, organ function, and comorbidities should always be evaluated by a qualified healthcare provider.
The maternal-fetal safety profiles differ. DANAZOL is classified as Category C. Danazol is contraindicated in pregnancy. First trimester exposure is associated with virilization of female fetus including clitoromegaly, labioscrotal fusion, and urogenital sinus. ANDROID-F is classified as Category C. ANDROID-F contains methyltestosterone, a synthetic androgen. Androgens are teratogenic in humans. In first trimester: masculinization of female fetus, including clitoromegaly, labi. Always consult a maternal-fetal medicine specialist before taking either drug during pregnancy or lactation.