Large Animal Immobilon is a yellow, sterile, aqueous solution. Each ml contains 2.45 mg etorphine hydrochloride (2.25 mg etorphine base), 10 mg acepromazine maleate BP (Vet) (7.38 mg acepromazine base) and chlorocresol PhEur 0.1% w/v in saline.

Large Animal Revivon is a blue, sterile, aqueous solution. Each ml contains 3.26 mg diprenorphine hydrochloride (3 mg diprenorphine base), 0.001% w/v methylene blue and chlorocresol PhEur 0.1% w/v.