Viagra, while effective for many, can cause side effects. Common ones include headache, flushing, nasal congestion, and visual disturbances like blurred vision or sensitivity to light. Less common, but more serious, side effects include chest pain, irregular heartbeat, and sudden vision loss. Seek immediate medical attention if you experience any of these.
Common Side Effects
Headaches are frequently reported, often mild and transient. Flushing, a reddening of the skin, is another common reaction. Some men experience nasal congestion or a runny nose. Changes in vision, such as blurred vision or increased light sensitivity, are also possible. These side effects usually subside as the medication leaves your system.
Drug Interactions
Viagra interacts with several medications. Nitrates, used to treat angina, are contraindicated due to the risk of dangerously low blood pressure. Alpha-blockers, often prescribed for high blood pressure or enlarged prostate, can also increase the risk of hypotension when combined with Viagra. Certain antifungals and HIV protease inhibitors may also interact, potentially altering Viagra’s effectiveness or increasing side effects. Always inform your doctor of all medications you are taking, including over-the-counter drugs and supplements, before starting Viagra.
Serious Side Effects
Priapism, a prolonged and painful erection lasting more than four hours, requires immediate medical attention. This is a serious condition requiring prompt treatment to prevent permanent damage. Sudden hearing loss or vision loss, though rare, are also serious side effects that need immediate medical evaluation. Chest pain or irregular heartbeat are also reasons to contact a doctor without delay.
Disclaimer: This information is for educational purposes only and does not constitute medical advice. Consult your physician before using Viagra or any other medication.


