An antigen solution emulsified in mineral oil. The complete form is made up of killed, dried mycobacteria, usually M. tuberculosis, suspended in the oil phase. It is effective in stimulating cell-mediated immunity (IMMUNITY, CELLULAR) and potentiates the production of certain IMMUNOGLOBULINS in some animals. The incomplete form does not contain mycobacteria.

Synonyms: Adjuvant, Freund Freund Adjuvant 9007-81-2 Freunds Adjuvant Adjuvant, Freund's Freund's Adjuvant