Phentermine and Dry Mouth

Certain side effects may occur with the use of phentermine, and dry mouth appears to be one of them (although the exact percent of people who developed the problem was not reported in clinical trials). If you are taking phentermine and dry mouth occurs, you can try avoiding alcohol, tobacco, and caffeinated drinks. If needed, your healthcare provider may also recommend artificial saliva products.

 

Does Phentermine Cause Dry Mouth

Dry mouth is one of the possible side effects of phentermine. However, the exact percentage of people who developed a dry mouth due to phentermine has not been reported.
 

Phentermine and Dry Mouth: Recommendations

For people taking phentermine, there are some things that you can do to help with a dry mouth. Some of these suggestions include:
 
  • Try to avoid drinks with caffeine, such as coffee, tea, and many sodas. Caffeine can dry out the mouth.
     
  • Don't use tobacco or alcohol, as they can dry out the mouth.
     
  • Consider using a humidifier at night.
     
  • 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.
     
  • Be aware of spicy or salty foods because they may 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.
     
It is important to understand that a dry mouth can be more than just uncomfortable or annoying; a severe or long-lasting dry mouth can actually cause dental problems.
 
(Phentermine and Dry Mouth Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;