Numerous studies have shown that acidophilus can be effective in the treatment of vaginal infections caused by bacteria, bacterial stomach infections, irritable bowel syndrome, and diarrhea from taking antibiotics. More research is needed to determine its effectiveness for its other uses.
Acidophilus is usually well tolerated in adults and children. The most common side effects of oral supplements are intestinal gas and bloating.
Lactobacilli are bacteria that can cause an infection in people with a weak immune system, such as people with HIV/AIDS or cancer, as well as people who are taking medications that suppress the immune system (for example, those who have had a transplant) or who are receiving chemotherapy. If any of these apply to you, talk to your health care professional first before taking any type of acidophilus supplements.
If symptoms of digestive upset occur, worsen, or persist for more than 5 days, or if you notice blood in your stool, you should discontinue the use of acidophilus and consult a health care practitioner.
Acidophilus should not be taken at the same time as antibiotics–they should be taken at least 2 hours apart.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health product you may be taking.