Kamagra Oral Jelly is a medication containing Sildenafil Citrate, which is used by some men to manage erectile dysfunction (ED). Like all medicines, it may cause side effects in some users. Understanding these possible reactions can help individuals use the medication more safely and recognize when medical advice may be needed. The most common side effects of Kamagra Oral Jelly are usually mild and temporary. These may include headache, facial flushing, dizziness, nasal congestion, and indigestion.