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There is some concern that people with weakened immune systems, such as people with HIV/AIDS or organ transplant recipients, might have an overgrowth of lactobacillus from taking supplements containing live bacteria. Lactobacillus has caused disease (rarely) in people with weakened immune systems. To be on the safe side, if you have a weakened immune system, avoid taking supplements containing live bacteria without advice from your healthcare giver.
Some products labeled to contain certain Lactobacillus species have not contained what was claimed. In fact, some have been contaminated with potentially disease-causing bacteria.
Do not take lactobacillus without guidance from your healthcare provider if:
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.