Before taking Vidalista 5 mg, it's important to understand its use, dosage, and potential side effects. Vidalista 5 mg contains Tadalafil, which treats erectile dysfunction by increasing blood flow to the penis. Take it as prescribed by your doctor, typically 30 minutes before sexual activity. Avoid consuming alcohol and grapefruit juice, as they can interact with the medication. Common side effects include headache, indigestion, back pain, and flushing. If you experience severe side effects like chest pain or an erection lasting more than four hours, seek immediate medical help. Always consult your doctor to ensure it's safe based on your health condition.