Lactozyme is a supplemental source of the probiotics lactobacillus acidophilus dds 1 and bifidobacterium bifidum organisms each tablet supplies 50 million organisms each of lactobacillus acidophilus dds 1 and bifidobacterium bifidum organisms when packaged although antibiotics kill bacteria they dont discriminate between the friendly and unfriendly organisms so following antibiotic therapy the balance between good and bad bacteria in the intestines can be upset probiotics aide in