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Yes, you can take your medicine. If you need to be fasting, you must be having your cholesterol or blood sugar tested. You can take your medicines and have normal amounts of water to drink, even up until right before you have your blood drawn.
Best Answer: When fasting for a blood sugar or cholesterol test you should take nothing except water, the reasoning is simple....you don't know what fillers are put into these medications or supplements that could cause a faulty result.Go early for the test, then take them. just now. Report Abuse. Take your regular meds as prescribed, just tell your doctor what you have taken that day. I would only avoid vitamins (if chewable) or calcium supplements (same thing) or fish oil supplements (oil = fat). Do NOT skip blood pressure meds, ever, unless told to by your doctor.