Take Megalis 20 mg as prescribed by your healthcare provider. Swallow the tablet whole with a glass of water, and you can take it with or without food. Avoid consuming alcohol or grapefruit juice while taking this medication, as they may interact with Tadalafil. Common side effects of Megalis 20 mg may include headache, indigestion, back pain, muscle aches, flushing, stuffy or runny nose, and dizziness. These side effects are usually mild and temporary.
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