Clarithromycin is principally absorbed by the liver, and caution should be exercised with patients with impaired liver function. Antacids containing magnesium, aluminum or other salts should not be taken concurrently with azithromycin. Adverse antibiotic responses were mild to moderate in clinical trials and included diarrhea , nausea, and abdominal pain. Some zinc supplementation is recommended. L- cysteine supplementation has been proposed but should not be taken at the same time as minerals.
Antibiotics can result in yeast overgrowth, especially in female patients.
Gynecologists recommend Nizoral, Diflucan, Mycelex, or anti-yeast creams for women on antibiotics. To replace bacteria in the gastrointestinal system yogurt, Acidophillus or Lactobacillus tablets are recommended. In some patients 'organic' food has been beneficial. Caffeine should be avoided.