You should take your Tadarise 20mg eat whole with a glass of water with or without food approximately 30-60 minutes before sexual activity. The effect of Tadarise tablets 5mg normally lasts as long as 4-5 hours after taking your tablet, but you can take your Tadarise tablet 20mg up to 36 hours earlier to anticipated sexual activity. You should take no more than one tablet a day and only if you plan to have sex.