If you have problems getting an erection don't worry, you're not alone. Erectile dysfunction affects more than half of all men aged between 40 and 75 at some point but help is available. Our trained and understanding staff at Dermacia pharmacy 19 Canonbury lane, Islington, London N1 2AS can help you work out your treatment options and prescribe medication, if it's suitable for you. The clinic is suitable for men aged 31 to 65.