Vidalista 20 contains tadalafil 20 mg, used to treat erectile dysfunction (ED). Age restrictions are important because the safety and effectiveness of tadalafil can vary with age and overall health. Who should follow age restrictions: Men under 18 years Tadalafil is not approved for use in children or adolescents. Its safety and effectiveness in this age group have not been established. Men over 65 or elderly patients Older men may have increased sensitivity to tadalafil, especially if they have heart disease, high/low blood pressure, or kidney/liver issues. Doctors may recommend a lower starting dose or closer monitoring. Men with cardiovascular conditions Those with recent heart attack, stroke, or unstable angina need special caution regardless of age. Men with kidney or liver impairment Dosage adjustments may be required, particularly in older adults. Summary Under 18: Should not use Vidalista 20. Elderly or medically fragile adults: Use only under medical supervision, with possible dose adjustments. Age restrictions help reduce the risk of side effects such as dizziness, low blood pressure, or heart problems.