Seek immediate medical attention if you experience chest pain, irregular heartbeat, or prolonged erection (lasting more than 4 hours).
Common side effects, often mild and temporary, include headache, flushing, nasal congestion, and visual disturbances (blurred vision, changes in color perception). These usually resolve within a few hours.
Less common but still possible side effects include indigestion, dizziness, and muscle aches. If these persist or worsen, consult your doctor.
Rare but serious side effects include sudden vision loss, hearing loss, and stroke. These require immediate medical care. A sudden decrease or loss of hearing should prompt you to stop taking Sildenafil and seek help immediately.
Note that this is not an exhaustive list. Always discuss potential side effects with your physician before starting Sildenafil. Inform your doctor about your medical history, including any heart conditions, high or low blood pressure, or retinal problems.
