Final answer:
The INCORRECT drug-effect match is 3) Ethosuximide - hirsutism, as this drug is used for absence seizures and does not commonly cause hirsutism.
Step-by-step explanation:
The drug-effect match that is INCORRECT is 3) Ethosuximide - hirsutism. Ethosuximide is primarily used in the treatment of absence seizures and does not commonly cause hirsutism. The other matches listed are recognized side effects of their respective drugs: Carbamazepine can lead to blood dyscrasias such as aplastic anemia and agranulocytosis, Phenytoin is known for causing gum hypertrophy, and Diazepam, a benzodiazepine, may cause ataxia as a side effect.