Finasteride is used to relieve the symptoms of urination (peeing) problems that can happen when you have an enlarged prostate. It works by reducing the size of the prostate.
It can help symptoms of difficulty in beginning the flow of urine, weak urinary flow, and the need to urinate frequently or urgently (including during the middle of the night).
Read more about enlarged prostate and bladder control problems.
It is also prescribed for hair loss in men, but this is not funded in Aotearoa New Zealand which means you have to pay for it.