In most instances, take your normal prescribed medications with a sip of water regardless of whether you are fasting. This is particularly important for those patients taking heart medications and blood pressure medications. If you are a diabetic, discuss a plan for managing your diabetes with your anaesthetist prior to surgery.
Sometimes surgeons will ask you to stop aspirin and other blood thinning agents (eg. clopidegrel, warfarin). However, people with severe heart disease, for example those with stents recently put into their coronary arteries, may need to continue these medications. If you have any questions, please discuss with your anaesthetist prior to the operation.