Viagra, while effective for many, can cause side effects. Common ones include headache, flushing, nasal congestion, and upset stomach. Less common but potentially serious side effects include vision changes (blurred vision, blue-tinged vision), hearing loss, and prolonged erection (priapism). Seek immediate medical attention if you experience a prolonged erection lasting more than four hours.
Common Side Effects
| Headache | Common | Usually resolves on its own. Consider over-the-counter pain relief if needed. |
| Flushing | Common | Drink plenty of water and avoid alcohol. Contact your doctor if severe. |
| Nasal Congestion | Common | Use saline nasal spray. Consult your physician if persistent. |
| Upset Stomach | Common | Take Viagra with food to minimize this. |
Certain medications interact negatively with Viagra. Nitrates (used to treat angina) are a particularly dangerous combination, potentially leading to dangerously low blood pressure. Alpha-blockers (used to treat high blood pressure and benign prostatic hyperplasia), some antifungals, and HIV protease inhibitors can also interact, increasing the risk of side effects. Always inform your doctor about all medications you are taking, including over-the-counter drugs and supplements, before starting Viagra.
Serious Side Effects
Rare but serious side effects warrant immediate medical attention. These include: sudden vision loss, heart attack, stroke, and irregular heartbeat. If you experience any of these, immediately seek help.
This information is not a substitute for professional medical advice. Consult your doctor to discuss Viagra’s suitability for you and to manage potential risks.
