Oysters can naturally increase the rate of testosterone production, meaning that your body will be alerted to providing extra blood flow to the penis. Tadalafil works on the PDE5 enzyme in the lungs to relax the blood vessels. By controlling the enzyme, tadalafil helps to maintain an erection after the penis is stroked by increasing blood flow to the penis. Talk to your doctor about eating grapefruit and drinking grapefruit juice while taking this medicine. This is high blood pressure that occurs in the main artery that carries blood from the right side of the heart the ventricle to the lungs. So, instead of taking unnatural Cialis, you should instead look to see if there are some natural ways you can reduce your stress levels. Found growing in China, this herb has been used for centuries as a natural memory booster, but new evidence has come to light that Ginkgo Biloba can be used for treating male impotence, and much more effectively than Cialis.Find patient medical information for Cialis oral on MD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. · Tadalafil is used to treat men who have erectile dysfunction (also called sexual impotence). Tadalafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. 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. This article will explain how it works alongside other pertinent information regarding its consumption.