Both pulmonary arterial hypertension and male erectile dysfunction can be treated with Vidalista Black 80. If you are younger than 18, do not take this medicine. As advised by your physician, you may take it with or without food. It is recommended to take the tablet 30 to 60 minutes before having sex. But after taking it, you can wait up to 36 hours before having sex. Keep at room temperature in an airtight container, away from children, pets, moisture, and bright light. Avoid or use alcohol sparingly while undergoing treatment because it can cause dizziness.