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A member asked:

I wanted to know is it possible to have an allergy to omnicef (cefdinir) but not amoxicillin?

A doctor has provided 1 answer
Dr. Stuart Kanter answered

Specializes in Internal Medicine - Geriatrics

Yes: Omnicef (cefdinir) is in a group of antibiotics called cephalosporin's. Amoxicillin is in the penicillin group. While there is some cross allergies to the 2, they are separate chemicals.

Answered 6/30/2014

4.7k views

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Related Questions

A member asked:

How long for Cefdinir to work on Strep in a 2 yr old? Amoxicillin ineffective for two days, switched to cefdinir last night, still very fevered & weak

A doctor has provided 1 answer

A member asked:

Sick for the entire month of July now. I caught Human Parainfluenza type 2 which caused bronchitis and a productive cough. Finished 2 rounds antibiotics, amoxicillin then Cefdinir. Having tightness in chest at night & shallower breathing. Why is this?

A doctor has provided 1 answer

A member asked:

Hi my daughter has strep throat its been a week still sick the doctor gave her cefdinir its not working do you think they should gave amoxicillin.

3 doctors weighed in across 2 answers

A member asked:

Right ear is completely closed-diagnosed as sinus infection. AMOXICILLIN 500 mg for 7 days; now CEFDINIR 300 mg for 10. Anything I can do for relief?

A doctor has provided 1 answer

A member asked:

I had strep throat on May 5th; finished course of amoxicillin on May 15th. I gave oral sex on May 24th to my boyfriend. May 25th I woke up and had strep symptoms again; tested positive and got prescribed Cefdinir. Can you get strep on your penis?

A doctor has provided 1 answer

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People also searched for:

If i've never had an allergic reaction to penicillin or amoxicillin how worried should I be about a reaction to omnicef (cefdinir)?
My son was given amoxicillin had hive reaction to it. He was switched to cefdinir. He continues with hives. Does this mean he's also allergic to this?
Will cefdinir treat strep throat as well as penicillin or amoxicillin?
What is the difference between amoxicillin vs cefdinir?
I normally take amoxicillin before dental work but I forgot to have my prescription filled. I have some cefdinir, would that work as well? If so how much should I take. I normally take four 500 MG amoxicillin.

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