Tadacip 20 is used to treat pulmonary arterial hypertension (PAH) and erectile dysfunction (ED) in males. It helps men achieve an erection by increasing blood flow to the penis. It lowers blood pressure in the lungs by relaxing or widening the blood arteries inside them in PAH. Individual differences in productivity mean that working takes anywhere from half an hour to an hour. Take it only as directed by a physician and only if necessary. Take it all in at once. Never shatter, eat, or crush it. You can take Tadacip 20 with or without food, however taking it at a set time is recommended.