Tadalafil has been extensively studied for ED. Side Effects What are the side effects of Cialis Tadalafil? Knowing that one can maintain a fulfilling intimate relationship bolsters self-esteem and overall mental health. If you feel that you require a stronger dose, you should speak to your doctor or pharmacist about increasing the dose to 20mg. Do not use in larger or smaller amounts or for longer than recommended.Cialis (tadalafil) is an orally administered prescription medication used for erectile dysfunction (ED) and pulmonary arterial hypertension (PAH) to reduce the symptoms of an enlarged prostate. mg, 5 mg, 10 mg, or 20 mg • Oral tablet: mg, 5 mg, 10 mg, or 20mg • Oral tablet: 20 mg, 40 mg • Oral suspension: 20 mg per 5 mL. With a Goodrx discount, the price for the generic version of Cialis (tadalafil) 5 mg is about $8 for 15 tablets. The brand version costs about $ What is the price of Cialis 20 mg? Post-Donut Hole. Copay Range. $1 – $ After your deductible has been satisfied, you will enter the Post-Deductible (also called Initial Coverage) stage, where you pay your copay and your plan covers the rest of the drug cost. Want an exact price for your co-pay?