Finasteride (Propecia) is an androgen hormone inhibitor used to treat male pattern hair loss in men. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Tablets Chemical Name: FINASTERIDE ( fi-NAS-teer-ide) Possible Uses of This Medication This medicine is an androgen hormone inhibitor used to treat male pattern hair loss IN MEN ONLY. Before using Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. More info... How to take this medication Follow the directions for using this medicine provided by your doctor. THIS MEDICINE COMES WITH A PATIENT INFORMATION LEAFLET. More info... Cautions IT MAY TAKE SEVERAL MONTHS for this medicine to work. Do not stop taking this medicine without checking with your doctor. More info... Possible side effects A SIDE EFFECT that may occur while taking this medicine is a change in sexual function. If it continues or is bothersome, check with your doctor. More info... Drug interactions Drug interactions can result in unwanted side effects or prevent a medicine from doing its job.Inform your doctor about all the medicines you take with and without a prescription. Missed Dose IF YOU MISS A DOSE OF THIS MEDICINE and you are taking 1 dose daily, take the missed dose if you remember the same day. More info... Storage Store at room temperature away from sunlight and moisture. More info... Other Information DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. More info...