*IVERMECTIN & FENBENDAZOLE are for LABORATORY RESEARCH USE ONLY. *Research chemicals are chemical substances used by scientists for medical and scientific research purposes. One characteristic of a research chemical is that it is for laboratory research use only: a research chemical is not intended for human or veterinary use. This distinction is required on labels of research chemicals and is what exempts them from regulation under parts 100-740 in Title 21 of the Code of Federal Regulations (21CFR)