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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Dry Mouth and Excessive Thirst

Well, many medicines can cause dryness of the mouth or thirst as a side effect.

Don't stop taking medications you were prescribed, even if you think your medication could be causing your symptoms. Check with your doctor and talk about whether an alternative medicine (or even no medicine) is a reasonable option. And keep in mind that over-the-counter medicines, such as cold remedies, can cause dryness of the mouth as well.

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