Tadarise 20 mg? Here’s a fairly detailed overview of what you should know — its uses, how it works, how to take it, and precautions.  What is Tadarise 20 mg Tadarise 20 mg contains Tadalafil as the active ingredient. PharmEasy +2 The Lotus Biotech  actizapharmaceutical.com +2 Its main use is to treat Erectile Dysfunction (ED) in adult men — i.e. difficulty in getting or keeping an erection firm enough for sexual intercourse. actizapharmaceutical.com +2 PharmEasy +2 In some cases, medicines with tadalafil are also used for urinary symptoms from prostate enlargement (BPH) or pulmonary arterial hypertension (though for Tadarise 20 mg typical use is ED) — but the exact approved uses depend on what your doctor prescribes. Practo  How it works (Mechanism) Sexual stimulation in men triggers the release of “nitric oxide” in the penis. This leads to production of a substance called cGMP which relaxes smooth muscles, allowing blood vessels in the penile tissue to widen — causing increased blood flow and erection.