Acidophilus is used to control vaginal yeast infections, balance out intestinal flora, control cholesterol and minimize symptoms of diarrhea, according to Drugs.com. Acidophilus milk is also utilized as a remedy for lactose intolerance, however its effectiveness is not completely understood.
Acidophilus is a bacteria that is naturally produced by the body and found in the upper gastrointestinal tract, according to Mayo Clinic. Acidophilus is generally considered safe, however, individuals with immune disorders, damaged intestines or conditions that cause excess bacterial growth in the intestines should avoid taking acidophilus orally to prevent complications. Additional potential side effects include abscesses and septic arthritis.