6 doctors weighed in:

Same reaction. Anyone have bad side effects with omnicef (cefdinir) and not zithromax?

6 doctors weighed in
Dr. Martin Raff
Internal Medicine - Infectious Disease
5 doctors agree

In brief: Different drugs

Omnicef (cefdinir) is a cephalosporin antibiotic and Azithromycin is in an entirely different class of drugs.
There should be no cross reactions allergically. But you do not describe what side-effects to which you are referring. If this answer is not satisfactory, ask again.

In brief: Different drugs

Omnicef (cefdinir) is a cephalosporin antibiotic and Azithromycin is in an entirely different class of drugs.
There should be no cross reactions allergically. But you do not describe what side-effects to which you are referring. If this answer is not satisfactory, ask again.
Dr. Martin Raff
Dr. Martin Raff
Thank
Get help from a real doctor now
Dr. Vicken Poochikian
Board Certified,
38 years in practice
2M people helped
Continue
108,000 doctors available
Read more answers from doctors