Always consult your doctor before starting Viagra or any medication. Headaches, flushing, and nasal congestion are common side effects. These typically are mild and temporary.
Cardiovascular Effects
Viagra can lower blood pressure. If you have heart problems, including angina, you should discuss this with your physician before use. It’s also important to avoid taking Viagra with nitrates, as this combination can dangerously lower blood pressure.
Vision Changes
Some users report temporary changes in vision, such as blurred vision or sensitivity to light. If you experience persistent or severe vision problems, seek immediate medical attention.
Other Potential Side Effects
Rare but serious side effects include prolonged erection (priapism), hearing loss, and sudden vision loss. If you experience any of these, stop using Viagra and seek immediate medical help. Interaction with other medications is possible. Be sure to provide your doctor with a complete list of all medications you are taking.
Medication Interactions
Certain medications can interact negatively with Viagra. These include alpha-blockers (used for high blood pressure or prostate problems), antifungal medications, and some HIV medications. Your doctor can help determine if Viagra is safe for you considering your current medications.
