Sildenafil, while generally safe, can cause side effects. Common ones include headache, facial flushing, nasal congestion, and indigestion. These usually are mild and temporary. Less common but more serious side effects include vision changes (blurred vision, blue tint to vision), hearing loss, and prolonged erection (priapism). Seek immediate medical attention if you experience any of these serious side effects.
Crucially, sildenafil interacts with certain medications. Nitrates, commonly prescribed for chest pain, are a serious concern. Combining them with sildenafil can cause a dangerous drop in blood pressure. Alpha-blockers, used to treat high blood pressure and enlarged prostate, can also increase the risk of low blood pressure when taken with sildenafil.
Always inform your doctor about all medications, including over-the-counter drugs and herbal supplements, you are taking before starting sildenafil. This includes medications for heart conditions, blood pressure, and other health issues. Your doctor can assess potential interactions and adjust your treatment accordingly. This proactive approach helps ensure your safety and the effectiveness of your treatment.
Grapefruit juice can also interact with sildenafil, increasing its levels in your blood and potentially intensifying side effects. Limit or avoid grapefruit juice while taking sildenafil.
This information is for general knowledge and does not replace professional medical advice. Consult your physician or pharmacist for personalized guidance.


