Vilitra 10 is a medication containing vardenafil, a PDE-5 inhibitor used to treat erectile dysfunction (ED) in men. Like all medications, it can cause side effects, though many are mild and temporary. Common side effects include headache, facial flushing, dizziness, nasal congestion, indigestion, upset stomach, back or muscle pain, and mild visual disturbances. These usually resolve as the drug leaves the system. Serious but rare side effects require immediate medical attention. These include priapism (an erection lasting more than four hours), sudden vision or hearing loss, chest pain, irregular heartbeat, severe dizziness, or fainting, and allergic reactions such as rash or swelling. Vilitra 10 should not be combined with nitrate medications for chest pain, as this can cause dangerously low blood pressure. It may also interact with certain blood pressure medicines, antifungals, antibiotics, and HIV medications. Alcohol and grapefruit juice can increase the risk of side effects. Overall, most men tolerate Vilitra 10 well, experiencing only mild side effects, but it should always be used as prescribed and not more than once in 24 hours. Men with heart, liver, kidney, or blood pressure problems should consult a doctor before use. Vigilance is important for rare but serious reactions.