Propecia contains a medicine called finasteride. This belongs to a group of medicines called Type II 5 alpha reductase inhibitors. Your doctor has prescribed Propecia because you have male pattern hair loss (also known as androgenetic alopecia). Propecia increases hair growth on the scalp & prevents further hair loss in men. Men with mild to moderate, but not complete hair loss, can benefit from using Propecia. Propecia lowers the levels of DHT (dihydrotestosterone) in the scalp. This helps to reverse the balding process, leading to an increased hair growth & prevention of further hair loss. I have a private prescription If you have a prescription for Propecia please add the correct amount of tablets to your basket I do not have a prescription If you do not already have a prescription for Propecia then please visit Pharmacy 2U's Online Doctor Service. Pharmacy 2U can only dispense a Prescription Only Medicine (POM) if your order is accompanied by a valid UK or EU prescription issued by your doctor, consultant or other medical practicioner. Details of where to send the prescription will be issued with your unique order number at the confirmation page.