Viagra, while effective for many, can cause side effects. Common ones include headache, flushing, nasal congestion, and upset stomach. These usually are mild and temporary. Less common, but more serious, are 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.
Medication Interactions
Viagra interacts with certain medications. Nitrates, often prescribed for chest pain, are a particularly dangerous combination and should never be taken together. This combination can cause a significant drop in blood pressure. Other medications that may interact include alpha-blockers (used for high blood pressure or prostate problems), some antifungals, and HIV protease inhibitors. Always inform your doctor of all medications you are taking before starting Viagra.
Other Considerations
Pre-existing heart conditions, high or low blood pressure, stroke history, and retinal problems require careful consideration before Viagra use. Discuss your health history thoroughly with your doctor. Alcohol consumption can increase the risk of side effects. Consult your doctor for personalized advice.
