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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Synthroid And Benadryl Cause Extreme Fatigue?

Hi I just had my synthroid increased from 150 to 175. I m suffering with allergies right now and have been taking Benadryl and over the counter cough medicine. I feel really fatigued, barely want to move of the sofa. Could it be the combination of medication?
Fri, 26 Dec 2014
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Internal Medicine Specialist,  's  Response
Hello,
Welcome to HCM and thanks for your query.
Benadryl causes sedation when taken during daytime. Synthroid doesn't cause sedation.
You could use a non sedative antihistamine during daytime.
I shall be happy to answer your questions
Take care
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Can Synthroid And Benadryl Cause Extreme Fatigue?

Hello, Welcome to HCM and thanks for your query. Benadryl causes sedation when taken during daytime. Synthroid doesn t cause sedation. You could use a non sedative antihistamine during daytime. I shall be happy to answer your questions Take care