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Sympathomimetic drugs are used to treat cardiac arrest and low blood pressure, or even delay premature labor, among other things. These drugs can act through several mechanisms, such as directly activating postsynaptic receptors, blocking breakdown and reuptake of certain neurotransmitters, or stimulating production and release of catecholamines.
Such mimics are called parasympathomimetic drugs or cholinomimetic drugs. A receptor is cholinergic if it uses acetylcholine as its neurotransmitter. [2] A synapse is cholinergic if it uses acetylcholine as its neurotransmitter.
Another example is morphine, which mimics the actions of endorphins at μ-opioid receptors throughout the central nervous system. However, a drug can act as a full agonist in some tissues and as a partial agonist in other tissues, depending upon the relative numbers of receptors and differences in receptor coupling. [medical citation needed]
A parasympathomimetic drug, sometimes called a cholinomimetic drug [1] or cholinergic receptor stimulating agent, [2] is a substance that stimulates the parasympathetic nervous system (PSNS). [ 3 ] [ 2 ] These chemicals are also called cholinergic drugs because acetylcholine (ACh) is the neurotransmitter used by the PSNS.
A false neurotransmitter is a chemical compound which closely imitates the action of a neurotransmitter in the nervous system. Examples include 5-MeO-αMT (mimicking serotonin) and α-methyldopa. Another compound that has been discussed as a possible false neurotransmitter is octopamine. [1] [2]
GLP-1 agonists are a class of medications that mimic the action of the hormone GLP-1 (glucagon-like peptide-1), which is involved in insulin production and appetite regulation. “GLP-1 stands for ...
GABA is the major inhibitory neurotransmitter in the brain, and GABA-like drugs are used to suppress spasms. Alcohol is believed to mimic GABA's effect in the brain, binding to GABA receptors and inhibiting neuronal signaling.
Semaglutide is the active ingredient in Ozempic and Wegovy. These drugs mimic GLP-1 — the hormone the body naturally produces after eating — to make people feel full, reducing their cravings. ...