Men with impotence or erectile dysfunction can be treated with the drug Caverta 50mg. Now Caverta 50mg is on sale, you may get it for a low cost from our site pinkviva. The inability to achieve an erection is known as erectile dysfunction. Sildenafil is the primary active ingredient of Caverta 50mg. By inhibiting the PDE5 enzyme, Sildenafil increases blood flow to the penis during sexual stimulation Which results in erection.