Leading medical groups are advising millions of healthy men who are regularly screened for prostate cancer to consider taking a drug to prevent it.
Finasteride, sold generically as Proscar, is already widely used for urinary problems from enlarged prostates as men age. However, it has not been widely prescribed as a cancer preventive, and it may carry some risks.
The new advice from doctors with The American Society of Clinical Oncology and The American Urological Association tells men to talk to their doctors and decide for themselves if the good outweighs the bad.
In men who are regularly screened, Finasteride can cut the odds of being diagnosed with prostate cancer by about 25 percent.