5 days ago i was prescrebed omnicef for the treatment of bronchitis. i have been experiencing increasing fatigue while on the drug. today i woke up practically incapasitated with muscular fatigue and mental confusion. i called to convey the side effects to my doctor and pharmacist and they both said that fatigue was not a side effect. i am so disturrbed by this side effect because i actually had more energy last week when my bronchitis was untreated by an antibiotic. after a self directed study of the drug, i discovered that omnicef actually dramatically decreases the amount of carnitine in the body. carnitine is necessary for the proper metabolic process of fats into energy. i am suspicious that the withdrawl of carnatine in an already ill individual is responsible for the lathargy and mood instability that so many on this web posting have attested to.