[lisa_henderson]

I also had Lyme and I was also given metronidazole, in combination with other antibiotics. The theory for giving it was that Lyme, during its life cycle, has several forms, including a form that is a bit spore like (that is an informal and non-technical description of what I've read) and normal antibiotics are not effective against the spore form. The theory was that if you had Lyme that recurred often, as I did, it was because some of the Lyme was in a form that could not be reached by stuff such as Biaxin. Therefore, taking a combination of drugs, including metronidazole, was suppose to be more effective than taking any one antibiotic alone. For me, metronidazole did not work, or at least, it did not achieve the goal. It was wonderful for weight loss, but it did not help me beat Lyme. For me, I got over Lyme during an odd episode where I combined Biaxin and fasting (going a week without food, a week when I only had water and high doses of oral Biaxin).