Final answer:
The drug used to stimulate sweat glands is pilocarpine, a cholinergic medication that activates glands to produce sweat, aiding in specific diagnostic tests.
Step-by-step explanation:
The drug used to stimulate sweat glands is pilocarpine. Pilocarpine is a cholinergic medication, which means it mimics the action of acetylcholine, a neurotransmitter that can activate the sweat glands. It is commonly used in tests to diagnose conditions like cystic fibrosis by inducing sweating and allowing for the analysis of the sweat content. Pilocarpine interacts with the nervous system to encourage the glands to produce sweat, unlike other medications such as corticosteroids, which can suppress immune responses, acetaminophen, which is an analgesic and antipyretic, and ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID).