Tadalista Professional is recommended for patients who are unable to achieve and maintain an erection strong enough for sexual engagement. Tadalista Professional also contains tadalafil, the active ingredient in the well-known Cialis drug. The most dangerous and even lethal interactions can happen while using Tadalafil with nitrate or nitrite-containing drugs. These are mostly heart-related medications, so be sure you are not taking any of them. Patients should only take it as prescribed by a doctor, overdose on the drug should be avoided. Among the most common adverse effects of Tadalista Professional are headaches, body aches, and aching muscles.