The best way to use Tadarise 20 is to take it as prescribed by your doctor. This drug is not recommended for pregnant women or people under the age of 18. It is not safe for anyone with kidney or liver disease. Also, Tadarise is not safe for people who have liver or kidney problems. This medication should not be taken by people who have high blood pressure, kidney or liver disease. In addition, Tadarise may not be suitable for patients with peptic ulcers, retinitis pigments, or genital malformations.