Propecia can only work over the long term if you continue taking it. Your doctor will perform tests to make sure you do not have other conditions that would prevent you from safely using finasteride. Buy propecia tablets are coated and will prevent contact with the active ingredient during normal handling, provided that the tablets are not broken or crushed. You should discuss this with your doctor. Tell your doctor about all medications you use. Get up slowly and steady yourself to prevent a fall.