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A 39-year-old female asked:

A year ago i was prescribed doxycycline for a sinus infection and it gave me unpleasant side effects and left me with unpleasant after effects, i've now been prescribed metronidazole and on the second day of use i'm feeling the same side effects start. a

1 doctor answer3 doctors weighed in
Dr. Philip Miller
A Verified Doctoranswered
Family Medicine 49 years experience
Side seffects: Take the metronidazole on a very full stomach and call your prescribing physician. GI side effects are common with both.
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Last updated Sep 10, 2014


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