Sildenafil, while generally safe, can cause side effects. Understanding these potential issues helps you make informed decisions.
Common side effects include headaches, flushing, nasal congestion, and visual disturbances like blurry vision or sensitivity to light. These usually are mild and temporary.
- Headaches affect approximately 15% of users. Facial flushing occurs in around 10% of cases. Nasal congestion is reported by about 7%.
Less common, but more serious, side effects are possible. These require immediate medical attention.
Prolonged erection (priapism): Seek immediate medical help if an erection lasts longer than four hours. This is a medical emergency. Sudden vision loss: Stop taking sildenafil and contact your doctor immediately if you experience sudden vision loss. Hearing loss: Report any sudden hearing loss or ringing in the ears to your doctor without delay. Heart problems: Sildenafil can increase the risk of heart attack or stroke, especially in individuals with pre-existing heart conditions. Discuss your heart health with your doctor before using this medication.
Certain medications interact negatively with sildenafil. Always inform your doctor about all medications and supplements you are taking, including nitrates, alpha-blockers, and some antifungals.
Individual responses vary. If you experience any concerning side effects, contact your doctor or pharmacist for advice. This information is not a substitute for professional medical guidance.


