Kamagra Oral Jelly is taken for impotence and erectile dysfunction. Sildenafil in this medicine helps in getting a stronger, harder, and longer erection during intercourse. This jelly works effectively if you take it 30 minutes or 1 hour before intercourse. You can take this jelly before or after meals. The effect of this jelly lasts for 4 to 6 hours. This jelly is taken by men aged 18 to 65 years. Take this jelly as per the doctor's advice.