Comparative Pharmacology
Head-to-head clinical analysis: ANDROID 10 versus TESTOSTERONE ENANTHATE AND ESTRADIOL VALERATE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ANDROID 10 versus TESTOSTERONE ENANTHATE AND ESTRADIOL VALERATE.
ANDROID 10 vs TESTOSTERONE ENANTHATE AND ESTRADIOL VALERATE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Androgen receptor agonist; testicular androgen responsible for development and maintenance of male sex characteristics and anabolic effects; increases protein synthesis and muscle mass.
Testosterone enanthate is a prodrug of testosterone, which binds to androgen receptors, activating gene transcription that leads to development of male secondary sex characteristics and anabolic effects. Estradiol valerate is a prodrug of estradiol, which binds to estrogen receptors, promoting growth and development of female reproductive tissues and secondary sex characteristics.
Testosterone undecanoate 750 mg (3 mL) intramuscular injection every 10 weeks, or testosterone cypionate 50-400 mg intramuscular injection every 2-4 weeks. For gel formulations: 50-100 mg transdermally once daily.
1 to 2 mL of a combination product containing 90 mg testosterone enanthate and 4 mg estradiol valerate per mL intramuscularly every 4 weeks.
None Documented
None Documented
8 hours; clinical context: steady-state achieved in 2-3 days, dosing interval 8-12 hours.
Testosterone enanthate: 4-5 days (IM). Estradiol valerate: 2-3 days (IM). Steady-state reached in ~2-3 weeks.
Renal: 90% as glucuronide and sulfate conjugates, 6% as unchanged drug; fecal: 4%.
Testosterone enanthate and estradiol valerate are metabolized in the liver. Testosterone metabolites (e.g., androsterone, etiocholanolone) are conjugated and excreted renally (90%) and fecally (~10%). Estradiol valerate is hydrolyzed to estradiol, metabolized to estrone and estriol, conjugated, and excreted primarily renally (70-80%) with ~20% biliary/fecal.
Category C
Category D/X
Androgen
Androgen