As nouns the difference between gonorrhea and antigonorrhoeic
is that
gonorrhea is an std caused by a species of bacteria (the gonococcus) that affects the mucous membrane of the genital and urinary tracts while
antigonorrhoeic is (medicine) an agent which is utilised to prevent the process of gonorrhoea in people.
As an adjective antigonorrhoeic is
(medicine) that which acts against , preventive of gonorrhea.