He is good at urology diseases such as prostate hyperplasia, acute or onic prostatitis, difficult prostatitis, impotency, prospermia, ED, Stds, deficiency of sperm, male sterility.
You're right, it is similar to 5-alpha reductase, which is the, sorry, inhibition, which is very similar to another drug called finasteride, which is something that men can be prescribed for benign prosthetic hypertrophy.