Drugs before Surgery: When to Continue and When to Withhold Important reminder for those planning surgery: remember to consult with your doctor about which medications to continue and which to withhold prior to your procedure. Aspirin, for example, should be stopped 2-3 days before surgery, unless you have a history of heart disease and are scheduled for CABG, in which case it can be continued up to 24 hours before. #mbbs #neetpg #surgeryprep #drugsbeforesurgery #aspirinasahold #cabgmedications