Vilitra contains vardenafil, a medicine used for erectile dysfunction (ED). It should be taken only under medical advice, especially in certain situations where safety or underlying health conditions need careful monitoring. When Vilitra should be taken under medical supervision You should use Vilitra only after a doctor’s approval if you have any of the following: 1. Heart or blood pressure problems History of heart attack, angina, or stroke Low or uncontrolled high blood pressure Irregular heartbeat or heart failure 2. If you take other medications Especially important if you use: Nitrates (for chest pain) → dangerous drop in blood pressure Alpha-Vilitra (for prostate or BP) Other BP or heart medicines 3. Liver or kidney disease Dose adjustment may be needed because the drug is processed in these organs 4. Eye conditions History of rare vision disorders (like retinitis pigmentosa) or sudden vision loss 5. Physical causes of ED Doctors may want to check if ED is linked to: Diabetes Hormonal imbalance Neurological issues Psychological stress or anxiety 6. If you are new to ED medicines A doctor helps decide: Correct starting dose (usually 10 mg or 20 mg) Whether sildenafil/tadalafil alternatives are safer for you General safe-use timing (for reference only) Taken about 25–60 minutes before sexual activity Works for about 4–6 hours Do not take more than once in 24 hours Why medical advice matters Vardenafil is generally safe when used correctly, but combining it with certain health conditions or drugs can cause: Dangerous blood pressure drops Heart strain Severe dizziness or fainting If you want, I can compare Vilitra vs Cenforce vs Vidalista in a simple table so you can see which fits different situations better.