Sildenafil oral jelly can cause side effects, similar to those reported with sildenafil tablets.
Common side effects may include:
- Headache[1][5][7]
- Flushing (feeling of warmth or hot flushes)[1][5][7]
- Upset stomach or nausea[1][5][7]
- Heartburn[7]
- Diarrhea[7]
- Nasal congestion[1][7]
- Vision changes (including seeing a blue tinge, blurred vision, sensitivity to light)[1][7]
- Pain in muscles, back, arms, or legs[7]
- Nosebleeds[7]
- Numbness or tingling in extremities[7]
Serious side effects are rare but require immediate medical attention. These include:
- Sudden decrease or loss of vision[5][7]
- Sudden decrease or loss of hearing, sometimes with dizziness or ringing in the ears (tinnitus)[3][7]
- Chest pain, which could indicate a heart problem[3][5][7]
- Shortness of breath or trouble breathing[3][7]
- Prolonged or painful erection (priapism)—especially if lasting more than four hours[1][3][5][7]
- Fainting, dizziness, or severe lightheadedness[3][5][7]
- Serious allergic reactions, such as swelling of the lips, face, throat or tongue, severe rash, difficulty breathing or swallowing (anaphylaxis)[1][5][7]
- Seizure or fit[5]
- Confusion, severe drowsiness, or being unresponsive[5]
If you experience any of the above serious side effects, stop taking sildenafil oral jelly immediately and seek medical help.
Although rare, there have also been reports of heart attack, stroke, and sudden death in men with pre-existing heart conditions following sildenafil use. Causality is not always clear[7].
Kamagra Oral Jelly, a popular branded version of sildenafil oral jelly, is not FDA-approved and has not been rigorously tested for safety or efficacy in the United States[8].