Always follow your doctor’s instructions precisely. The typical starting dose is 50mg, taken as needed, about an hour before sexual activity. Your doctor may adjust this based on your response and health. Don’t exceed 100mg in a 24-hour period.
Common Side Effects
Some men experience headaches, flushing, or nasal congestion. These are usually mild and temporary. More rarely, you might experience muscle aches, dizziness, or vision changes (blurred vision, sensitivity to light). These side effects usually subside within a few hours.
Serious Side Effects
Seek immediate medical attention if you experience prolonged erection (lasting more than 4 hours), chest pain, sudden vision loss, or hearing loss. These are rare but serious possibilities. Inform your doctor about any pre-existing health conditions, especially heart problems, before starting treatment.
Medication Interactions
Certain medications can interact with Viagra. Disclose all medications, including over-the-counter drugs and supplements, to your doctor. This includes nitrates, often used to treat heart conditions. Combining these can be dangerous.
