It continues to be available to patients on the NHS who obtain a prescription from their prescriber. It will be available over-the-counter as a pharmacy medicine, enabling men aged 18 or over who are having erection difficulties to obtain treatment more conveniently. The cost of the medicine is in addition to the prescription fee. When to take Cialis for best results? Some doctors, particularly private doctors, but also some GP s, will write private prescriptions for Cialis. When does the Cialis patent expire? Viagra It depends on your circumstances and preferences.16 tablets. ? Erectile dysfunction is when a man is unable to gain or maintain an erection. Find treatments & advice through our safe & discreet online clinic. Cialis Together 10mg Tablets – Tadalafil – 4 Tablets. Write a review. ? 4 UNI | ? per 1UNI. Free next day delivery on selected medicines when you use code .