SIDE EFFECTS: Cefaclor is generally well tolerated, and side effects usually are transient. Reported side effects include:
- joint pain,
- abnormal liver tests,
- insomnia, and
Cefaclor should be avoided by patients with known allergy to cephalosporin type antibiotics. Since cefaclor is chemically related to penicillin, patients allergic to penicillin can have an allergic reaction (sometimes even anaphylaxis) if given cefaclor. Treatment with cefaclor and other antibiotics can alter the normal bacteria flora of the colon and permit overgrowth of C. difficile, a bacteria responsible for pseudomembranous colitis. Patients who develop pseudomembranous colitis as a result of antibiotics treatment can experience diarrhea, abdominal pain, fever, and sometimes even shock.
Quick GuideInfectious Mononucleosis (Mono): Symptoms and Treatment
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