Cialis (tadalafil) is for the treatment of erectile dysfunction. Cialis can help men who have problems achieving an erection during sex. Cialis is a prescription only medicine it can not be bought over the counter, you will either need a prescription from your local doctor or you can use our online doctor service I have a prescription If you have a prescription for Cialis 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 Cialis then please visit Pharmacy 2U's Online Doctor Service. For more information on Cialis (tadalafil) & erection problems please Click Here Pharmacy 2U can only dispense a Prescription Only Medicine (POM) if your order is accompanied by a valid UK prescription issued by your doctor, consultant or other medical practitioner. Details of where to send the prescription will be issued with your unique order number at the confirmation page.