Teva 5343 has been identified as Sildenafil Citrate 20 mg. Teva Pharmaceuticals USA Inc. supplies it. These pills are known to relax the muscles of the blood vessels, leading to increased blood flow in particular areas of the body. Many people buy TEVA 5343 pills for the treatment of Erectile dysfunction and belong to the drug classes agents for pulmonary hypertension, and impotence agents. Most importantly there is no risk in pregnancy.