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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is bitter taste in mouth normal after taking HP7 Klacid?

Hi Dr Charles, I was diagnosed h pylori and was prescribed HP7 Klacid (Clarithromycin, Pantoprazole, Amoxicillin). After starting to take the medicine, I have very bitter taste in my mouth in the mornings (which sometimes wakes me up). Is this normal? Look forward to hearing from you, thank you.
Wed, 4 Sep 2019
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Internal Medicine Specialist 's  Response
Hello,

This is a very common side effect for Clarithromycin. It affects 1 out of 7 individuals taking it. It should get better after you stop the drug. Another common cause of bad taste is yeast infection of the mouth. Antibiotics may cause fungal infections by eliminating their contestants for food (harmless bacteria).

If your mouth and tongue look normal (no redness or white patches) then it's probably the bad taste caused by Clarithromycin.

I hope I've answered your question. Please let me know if you need further assistance.

Regards,
Dr. Panagiotis Zografakis
Internal Medicine Specialist
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