Pleo Fort (Fortakehl) is used for all gastrointestinal issues including digestive mycosis and rebalancing gastrointestinal symbiosis. It is obtained from the mold fungus Penicillium roquefortii, however it is not an antibiotic and does not produce antibiotic substances. Therefore, there are no occurance of side effects as may be seen with conventional antibiotic treatment, such as allergies, liver damage, destruction of the intestinal flora, and the formation of penicillin-resistant strains.