NyQuil is a nonprescription cough and cold product that is available in a number of different formulations. It typically contains an antihistamine, a cough suppressant, and a pain reliever/fever reducer. All of these active ingredients should be safe for a person with diabetes. People with diabetes should avoid medications that contain pseudoephedrine or phenylephrine, which are decongestants. Fortunately, pseudoephedrine and phenylephrine are typically not included in nighttime cough and cold formulations.
NyQuil syrup does contain high fructose corn syrup. So it may raise blood sugar levels. If you're considering using NyQuil, I would recommend using NyQuil Liquicaps, which would not have the same effect on your blood sugar.
It's important to note that when treating a cold, pharmacists and health care providers match a person's symptoms to the appropriate active ingredients. It may be possible that a multi-symptom product, such as NyQuil, contains more active ingredients than you need to treat your symptoms. Talk with your pharmacist who can help you select the best cough and cold product for your symptoms.
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