A 72-year-old man with metastatic prostate cancer presents with BP 138/82, HR 88, RR 16, temperature 37.2°C, and SpO2 98% on room air. He reports gynecomastia and decreased libido over the past month. PSA level is 42 ng/mL; bone scan shows metastatic disease. He denies penile dysfunction. His urologist initiates a nonsteroidal antiandrogen to competitively block testosterone and dihydrotestosterone receptor binding. Which drug was most likely prescribed?
- A)FlutamideGABARITO
- B)Leuprolide
- C)Spironolactone
- D)Finasteride
- E)Clomiphene
Explicação
Flutamide is an androgen receptor blocker used in prostate cancer. Unlike finasteride, which reduces DHT synthesis, flutamide directly blocks androgen receptor signaling and can cause gynecomastia and hepatotoxicity. Ver explicação completa e trilha adaptativa →