more constituents which have been mixed together for therapeutic or prophylactic uses, not put up in measured doses or in forms or packings for retail sale: 3003.10.0000 - - Containing penicillins or derivatives thereof, with a penicillanic acid structure, or streptomycins or their derivatives kg 3003.20.0000 - - Containing other antibiotics kg - - Containing hormones or other products of heading