Finasteride 1mg Tablet is a medication that is used to treat male pattern hair loss as well as an enlarged prostate gland. It is a 5-alpha-reductase inhibitor, which works by preventing testosterone from being converted to dihydrotestosterone. DHT is a hormone that has been linked to hair loss and an enlarged prostate. It is typically taken once daily, with or without food. The length of treatment is determined by the patient's individual needs as determined by a healthcare provider. Patients should immediately notify their healthcare provider if they experience any side effects. It is critical to take this exactly as prescribed.