Harvard Men's Health Watch

Drugs for enlarged prostate: Is cancer a side effect?

The medications dutasteride (Avodart) or finasteride (Proscar) are used to treat symptoms of noncancerous enlarged prostate, or benign prostatic hyperplasia (BPH). The drugs slightly lower the chance of low-risk prostate cancer while slightly increasing the risk of aggressive prostate cancer. Men must weigh the small long-term cancer risk associated with these drugs against the value of immediate relief of bothersome urinary symptoms caused by BPH.
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