Do not take Omnicef if you are allergic to cefdinir, or to similar antibiotics, such as Ceftin, Cefzil, Keflex, and others.
Before taking Omnicef, tell your doctor if you are allergic to any drugs (especially penicillin). Also tell your doctor if you have kidney disease or a history of intestinal problems.
Take Omnicef for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Cefdinir will not treat a viral infection such as the common cold or flu.
Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, stop taking this medicine and call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.
Before taking this medicine
To make sure Omnicef is safe for you, tell your doctor if you have ever had:
kidney disease (or if you are on dialysis);
intestinal problems, such as colitis; or
an allergy to any drugs (especially penicillins).
Omnicef liquid contains sucrose. Talk to your doctor before using this form of cefdinir if you have diabetes.
Tell your doctor if you are pregnant or breastfeeding.
