Heart Disease Home > Tiazac and Dry Mouth

In clinical studies documenting the side effects of diltiazem (the active ingredient of Tiazac), dry mouth was reported in less than 2 percent of people taking the medication. You may obtain relief by sipping water or sugarless drinks often, avoiding caffeinated drinks, and using a humidifier. If you continue to experience dry mouth with Tiazac, your healthcare provider can make other recommendations.

Tiazac and Dry Mouth: An Overview

A dry mouth is one of the possible side effects of Tiazac® (diltiazem hydrochloride). In studies, less than 2 percent of people taking diltiazem (the active ingredient of Tiazac) reported experiencing a dry mouth.

Tiazac and Dry Mouth: Suggestions

If you experience dry mouth while taking Tiazac, there are some things that you can do to help provide relief. Some of these suggestions include:
  • Sip water or sugarless drinks often.
  • Sip water or sugarless drinks during meals. This will make chewing and swallowing easier. It may also improve the taste of food.
  • Avoid drinks with caffeine, such as coffee, tea, and some sodas. Caffeine can dry out the mouth.
  • Avoid tobacco or alcohol, which can dry out the mouth.
  • Use a humidifier at night.
  • Be aware of spicy or salty foods, which can cause pain in a dry mouth.
  • Chew sugarless gum or suck on sugarless hard candy to stimulate saliva flow; cinnamon- or mint-flavored candies are good choices.

Tiazac and Dry Mouth: Final Thoughts

If you have a dry mouth while taking Tiazac and the suggestions in this article do not help, make sure to talk with your healthcare provider. He or she may be able to recommend other treatment options, such as artificial saliva. Also, depending on the severity of your symptoms, your healthcare provider may recommend that you adjust your Tiazac dosage or try another angina or blood pressure medicine.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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