Erex is commonly used to treat the signs and symptoms of erectile dysfunction (ED, impotence) in males. It contains Sildenafil citrate as the main active element. Erex is available in doses of 50 mg and 100 mg. Buy Erex tablets online now.Erex is commonly used to treat the signs and symptoms of erectile dysfunction (ED, impotence) in males. It contains Sildenafil citrate as the main active element. Erex is available in doses of 50 mg and 100 mg. Buy Erex tablets online now....Show More