Tadalista 40 is a medication used to treat erectile dysfunction in men. It is often taken 30 to 60 minutes before sexual activity and is effective for up to 36 hours. It is not recommended to abuse alcohol consumption or use it to increase an erection that has been suppressed by heavy alcohol use. You should never take two doses to make up for missing one. Get in touch with your doctor or other healthcare practitioner immediately if you accidentally take more medication than is recommended.