"Companion animal", a domesticated animal including, but not limited to, fowl, birds, fish or reptiles; provided, however, that "companion animal" shall not include animals intended for consumption or whose products are intended for consumption by humans or other animals.
"Compounded drug", a drug formulation distributed from a pharmacy that has been prepared, mixed or assembled for use on or for a companion animal to meet the unique medical need of a companion animal as determined by the prescribing veterinarian including, but not limited to, the removal of a dye for medical reasons, a change in strength, the addition of a flavor or a change in dosage, form or delivery mechanism.
Mass. Gen. Laws ch. 112, § 58A 1/2