Propecia (finasteride) is a prescription medicine used for the treatment of male pattern baldness in men of different age and health condition. This medicine causes no drugs interactions and is very well tolerated. However, you will still need to tell your health care provider about any medicines you are taking at the moment - just to make sure you are not going to get any side effects. Such health conditions as bladder muscle disorder, abnormal liver enzyme function, liver disease, prostate cancer, and stricture of your urethra are supposed to be reported to your health care provider to make sure you will be prescribed the most efficient dose that will not cause you to experience any side effects. Beware of the following signs of male breast cancer that you may develop as a result of taking Propecia: breast pain, breast lumps, breast changes, and nipple discharge. These will need to be reported to your doctor as soon as possible, and you may need to stop the treatment. Propecia is efficient only as long as you continue taking it - so make sure you do not stop the treatment if you want to maintain the progress achieved. It may take you up to three months to notice the first results of your treatment.