One advantage Cialis has over Viagra and Levitra is its These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. BPH is caused by an enlarged prostate. Physicians should discuss with patients the appropriate action in the event that they experience anginal chest pain requiring nitroglycerin following intake of CIALIS. Interestingly, Cialis has been more linked to improved self-esteem and other psychological factors than the other PDE5 medications.Tadalafil – STADA T20 – 20 Milligramm. Tadalafil, sold under the brand name Cialis among others, is a medication used to treat erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. [4] [5] [7] It is taken by mouth. [7] Onset is typically within half an hour and the duration is up to 36 hours. Cialis comes as oral tablets that are available in four strengths: milligrams (mg), 5 mg, 10 mg, and 20 mg. Recommended dosage for Cialis Typically, . The daily doses are available in and 5-mg tablets. Doctors usually start their patients on the mg dose, though 5 mg may be appropriate if needed for greater .