As nouns the difference between dog and atipamezole
is that
dog is a mammal,
canis lupus familiaris , that has been domesticated for thousands of years, of highly variable appearance due to human breeding while
atipamezole is a synthetic alpha2-adrenergic antagonist indicated for the reversal of the sedative and analgesic effects of dexmedetomidine and medetomidine in dogs.
As a verb dog
is to pursue with the intent to catch.