bi·o·e·quiv·a·lent 
(bī′ō-ĭ-kwĭvə-lənt)
(bī′ō-ĭ-kwĭvə-lənt)adj.
Acting on the body with the same strength and similar bioavailability as the same dosage of a sample of a given substance. Used of differing formulations of a drug or chemical compound.
bi′o·e·quiva·lence n.