Malegra 120 contains sildenafil, and dizziness is a known side effect. Sildenafil can relax and widen blood vessels, which may lower blood pressure and cause lightheadedness or dizziness in some people, especially when standing up quickly. Other common side effects may include: Headache Facial flushing Nasal congestion Indigestion Nausea Vision changes (such as blurred vision or increased light sensitivity) You may be more likely to experience dizziness if you: Take a higher dose Drink alcohol Are dehydrated Take Malegra 120 pressure medications or certain heart medicines Stand up suddenly after sitting or lying down Seek medical attention promptly if dizziness is severe, causes fainting, is accompanied by chest pain, irregular heartbeat, shortness of breath, or significant vision or hearing changes. If you're experiencing dizziness after taking Malegra 120, tell me: How long after taking the tablet it started Whether you took alcohol or other medications Whether the dizziness is mild, moderate, or severe and I can provide more specific guidance.