Patients who have a condition called “left ventricular outlet obstruction” from valvular problems or heart muscle enlargement may get side effects such as fainting or light-headedness. It can also interact with many medicines, particularly nitrates used in some types of heart disease and blood pressure medicines. The decision of availability is completely up to the company marketing the product. Symptoms may include sudden urges to urinate urgency , difficulty in starting urination hesitancy , a weak urine stream, and more frequent urination — especially at night. There may be rare occurrences of priapism or painful, prolonged erections. Tadalafil may not be safe for people with certain medical conditions, including people who have had a stroke , have coronary heart disease or retinitis pigmentosa an eye disease.Do Cialis side effects vary based on whether I’m taking a high or low dose ( mg, 5 mg, 10 mg, or 20 mg)? Yes, side effects caused by Cialis can vary depending on the strength you’re taking. El tadalafilo (Cialis) se usa para tratar la disfunción eréctil (DE, impotencia; incapacidad de conseguir o mantener una erección), y los síntomas de la hiperplasia prostática benigna (HPB; próstata agrandada) que incluyen dificultad para orinar (vacilación, goteo, chorro débil y vaciado incompleto de la vejiga), dolor al orinar, y frecuencia y urgencia urinaria . 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 HEALTHFNDD, order by 8pm – online only. Helps you get and maintain an erection when you need it. Effective up to 36 hours.