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Chlorhexidine

Chlorhexidine: How It Works, How to Take It, and Side Effects

Also known as Peridex, this mouthwash can help treat gingivitis.

Lauren Smith, MAChristina Aungst, PharmD
Written by Lauren Smith, MA | Reviewed by Christina Aungst, PharmD
Updated on February 13, 2025
Featuring Joshua Murdock, PharmD, BCBBSReviewed by Christina Aungst, PharmD | February 12, 2025

Chlorhexidine (Peridex) is an antiseptic mouthwash. It kills germs by destroying their protective coverings, which helps prevent plaque and treat gingivitis.

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Lauren Smith, MA
Written by:
Lauren Smith, MA
Lauren Smith, MA, has worked in health journalism since 2017. Before joining GoodRx, she was the senior health editor and writer for HealthiNation.
Christina Aungst, PharmD, is a pharmacy editor for GoodRx. She began writing for GoodRx Health in 2019, transitioning from freelance writer to editor in 2021.

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