You should not use this medicine if you have had an allergic reaction to finasteride. Women and children should not take finasteride. Women who are pregnant or may become pregnant should avoid handling crushed or broken finasteride tablets.
Make sure your doctor knows if you have liver disease or problems urinating.
This medicine may cause a decrease in the amount of sperm you ejaculate during sex.
If you are tested for prostate cancer using a blood test called PSA (prostate-specific antigen), tell the doctor that you are taking finasteride. This medicine can affect the test results, especially if you are over 41 years of age.
Once you stop using this medicine for hair loss, any improvement will probably be reversed within 12 months.