Kamagra 100mg oral jelly is very effective for erectile dysfunction (impotence). This jelly contains an ingredient called sildenafil citrate which helps in increasing blood flow to the penile tissue in men. Take this jelly 30-40 minutes before intercourse so that you can enjoy intercourse with your partner. The effect of this jelly lasts for 4 to 6 hours. You should take this jelly as per your doctor's advice. You can take this jelly before or after meals. Do not consume alcoholic beverages or fatty foods with this jelly. This jelly is only taken by men above 18 years of age.