Efficacy and Safety of a Probiotic Product in Children With Antibiotic-associated Gastrointestinal Disorders.

Inclusion criteria 1. Children at the age of 1-11 years that have been ordinated to start antibiotic treatment except for penicillin. 2. Possibility to initiate the probiotic treatment within 24 hours after the first dose of the antibiotic treatment. 3. Children whose parents or legal caregivers have signed the informed consent to participate in the study. Exclusion criteria 1. Chronic intestinal disease. 2. Current immunodeficiency or immunosuppressive treatment. 3. Chronic or acute diarrhoeal disease. 4. Use of laxatives the week before inclusion in the study. 5. Antibiotic treatment for the last four weeks before inclusion in the study. 6. Known hypersensitivity to any of the ingredients in the probiotic product or the placebo \[potato starch, silicon dioxide, capsule (hypromellose, water) ± bacterial culture\]. 7. Intake of any probiotic products for the last two weeks before inclusion in the study. 8. Patient requiring hospitalisation. Lack of parents´/legal guardians´ informed consent.