Caverta 100 mg [Sildenafil] is a medication containing sildenafil citrate, which is a phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil Caverta 100 mg is commonly used to treat erectile dysfunction (ED) by increasing blood flow to the penis during sexual stimulation. Caverta is primarily used to treat erectile dysfunction, a condition where a man has difficulty achieving and maintaining an erection sufficient for sexual intercourse.