Question

drug that activates the central nervous system, such as amphetamines and cocaine
stimulant
anticoagulant
nicotine
atropine
anticonvulsant

Explanation:

A stimulant is a drug that increases the activity of the central nervous system. Amphetamines and cocaine are well - known examples of stimulants. An anticoagulant is a drug that prevents blood clotting. Nicotine is a specific chemical (a stimulant - like compound but more specifically a nicotinic acetylcholine receptor agonist) but the question is about a general class. Atropine is a drug that blocks the effects of the neurotransmitter acetylcholine. An anticonvulsant is a drug used to prevent or treat seizures.

Answer:

stimulant