The medication Kamagra Oral Jelly is used to treat male erectile dysfunction. Males over the age of 18 should be the only ones using this medication. Sildenafil, a component in this medication, aids in giving men a powerful erection during sexual activity. The medication Kamagra Gel aids in boosting blood flow to men's penile tissues. Take this medication an hour before sexual activity. This medication has a six-hour half-life. This medication can be used either before or after a meal. Follow your doctor's advice when taking this medication.