The medication Kamagra is used to treat erectile dysfunction. Tablets of sildenafil citrate function by blocking the PDE5 enzyme.Cyclic Guanosine Monophosphate (cGMP), which is elevated by this inhibition, enhances penile blood flow and aids in achieving and maintaining an erection in response to sexual stimulation.Additionally, it can aid in the treatment of pulmonary arterial hypertension (PAH) and benign prostatic hypertrophy, or an enlarged prostate.