At first, the problem of erectile dysfunction was referred to as "impotence". It is treated with Vidalista 80. Before adjusting the dosage or stopping the drug entirely, make sure you consult your doctor. The medication purple pill cialis is used to treat male erectile dysfunction. This medication is a highly helpful and effective treatment for impotence. Tadalafil, the active ingredient in this drug, aids men in achieving a firm erection during sexual activity. This stuff is exclusively for men. Take this medication half an hour before having any sexual relations. This medication takes four to six hours to start working. This drug should be taken with water. When taking this drug, follow your doctor's directions. Never chew or break the prescription. This drug can be taken with food.