Consult your doctor before using Viagra, especially if you have heart problems, high or low blood pressure, or liver/kidney disease. Viagra can interact negatively with certain medications, such as nitrates.
Common Side Effects
Many men experience mild side effects. These often include headaches, facial flushing, nasal congestion, and indigestion. These usually resolve on their own. If they persist or worsen, seek medical advice immediately.
Serious Side Effects
While rare, serious side effects are possible. These include prolonged erection (priapism), requiring immediate medical attention. Vision changes, such as sudden vision loss or blue-tinged vision, also necessitate immediate medical evaluation. Chest pain, shortness of breath, and irregular heartbeat are serious symptoms demanding immediate medical help. Seek emergency medical care if you experience these.
Side Effect Summary Table
| Mild | Headache, Flushing, Nasal Congestion, Indigestion | Usually resolves; consult doctor if persistent. |
| Serious | Prolonged Erection, Vision Changes, Chest Pain, Shortness of Breath, Irregular Heartbeat | Seek immediate medical attention. |
Medication Interactions
Viagra interacts with nitrates. Combining them can cause a dangerous drop in blood pressure. Discuss all your medications with your physician before using Viagra.
