Sildenafil acts as the active ingredient in the drug Suhagra. Suhagra is taken 1 hour before sex, after which the effect lasts for 5-6 hours. It is important to consult a doctor before taking Suhagra. These tablets are the most popular tablets of impotence. Suhagra is widely used for male use. Suhagra is suitable for small children and pets.