Is acetylcholine a stimulant?

Both and neither. ACH is a neurotransmitter that activates a multitude of different receptors. Some of the most important are for skeletal muscles and heart rate. It cannot be taken exogenously...

Stimulants are drugs that speed up the signals passing throught the Central Nervous System (CNS). The CNS is the system that controls your feelings, such as contact with something.

Stimulants can speed up the heart and make you feel awake.

Acetylcholine (the chloride salt form of acetylcholine, a synthetic, quaternary amino alcohol with cholinergic properties)

Have you eaten any chocolate or drunk any soda lately? If you have, there's a good chance you gave your body a dose of a stimulant -- caffeine, which is also in coffee.Eating or drinking a large...