Kamagra Oral Jelly is taken 10-15 minutes before intercourse and its effect lasts for 4-6 hours. Sexual stimulation is absolutely essential to achieve an effect. Kamagra Oral Jelly is a male sexual enhancer that makes  the erection more vigorous . Contains the active ingredient Sildenafil citrate.Sexual dysfunction occurs as a consequence of many physical and psychological problems and, in some cases, is not reversible