Always discuss potential side effects with your doctor before starting Viagra. Common side effects include headaches, facial flushing, and nasal congestion. These are usually mild and temporary.
More serious, though less common, side effects can include changes in vision (blurred vision, blue tint to vision), hearing loss, and prolonged erection (priapism). Seek immediate medical attention if you experience any of these.
Visual Side Effects
Visual disturbances, such as changes in color perception or blurred vision, are relatively infrequent. If you notice any unusual changes in your vision while taking Viagra, discontinue use and contact your doctor.
Cardiac Concerns
Viagra can affect blood pressure. Men with pre-existing heart conditions should discuss the risks with their physician before use. Chest pain or irregular heartbeat requires immediate medical attention.
Other Potential Side Effects
Other reported side effects, although less frequent, include dizziness, indigestion, and muscle aches. The severity and frequency of these vary from person to person.
Side Effect Summary Table
| Headache | Common | Usually resolves on its own; consider over-the-counter pain relief |
| Facial Flushing | Common | Usually resolves on its own |
| Nasal Congestion | Common | Usually resolves on its own |
| Visual Changes | Uncommon | Stop taking Viagra and contact your doctor immediately |
| Hearing Loss | Rare | Seek immediate medical attention |
| Prolonged Erection (Priapism) | Rare | Seek immediate medical attention |
Medication Interactions
Certain medications can interact negatively with Viagra. Provide your doctor with a complete list of all medications you are taking, including over-the-counter drugs and supplements, to avoid potential interactions.
