Bicalutamide

Description

Bicalutamide is a member of the nonsteroidal antiandrogen (NSAA) group of medications. It works by blocking the androgen receptor (AR), the biological target of the androgen sex hormones testosterone and dihydrotestosterone (DHT). It does not lower androgen levels.[6] The medication can have some estrogen-like effects in men. Bicalutamide is well-absorbed, and its absorption is not affected by food. The terminal half-life of the medication is around one week. It is believed to cross the blood-brain barrier and affect both the body and brain.

Bicalutamid has a molecular weight of 430.37. The pKa' is approximately 12. Bicalutamid is a fine white to off white powder which is practically insoluble in water at 37°C (5 mg per 1000 mL), slightly soluble in chloroform and absolute ethanol, sparingly soluble in methanol, and soluble in acetone and tetrahydrofuran.CASODEX (bicalutamid) is a racemate with its antiandrogenic activity being almost exclusively exhibited by the R-enantiomer of bicalutamid; the S-enantiomer is essentially inactive.