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Gamma-aminobutyric acid, a GABA-B receptor agonist. A GABA receptor agonist is a drug that is an agonist for one or more of the GABA receptors, producing typically sedative effects, and may also cause other effects such as anxiolytic, anticonvulsant, and muscle relaxant effects. [1] There are three receptors of the gamma-aminobutyric acid. The ...
Muscimol is a potent GABA A agonist, activating the receptor for the brain's principal inhibitory neurotransmitter, GABA. Muscimol binds to the same site on the GABA A receptor complex as GABA itself, as opposed to other GABAergic drugs such as barbiturates and benzodiazepines which bind to separate regulatory sites. [10]
A GABAergic or GABAnergic agent is any chemical that modifies the effects of GABA in the body or brain. Some different classes of GABAergic drugs include agonists, antagonists, modulators, reuptake inhibitors and enzymes. [1]
This is probably a side effect or even the actual mechanism of action for some antiepileptic drugs, since GABA can itself, directly or indirectly, act proconvulsively. [12] Another potential target of antiepileptic drugs is the peroxisome proliferator-activated receptor alpha .
In most cases, gabapentinoid drugs do not seem to directly alter the action of VGCC and instead reduce the release of certain excitatory neurotransmitters. [2] (However, see [16]). The gabapentinoid drugs do not bind significantly to other known drug receptors and so the α 2 δ VGCC subunit has been called the gabapentin receptor.
Pregabalin, sold under the brand name Lyrica among others, is an anticonvulsant, analgesic, and anxiolytic amino acid medication used to treat epilepsy, neuropathic pain, fibromyalgia, restless legs syndrome, opioid withdrawal, and generalized anxiety disorder (GAD).
By the early 1970s, it was appreciated that there are two main classes of GABA receptors, GABA A and GABA B and also that baclofen was an agonist of GABA B receptors. Gabapentin was designed, synthesized and tested in mice by researchers at the pharmaceutical company Goedecke AG in Freiburg, Germany (a subsidiary of Parke-Davis).
Phenibut (β-phenyl-GABA) – sedative and anxiolytic from Russia; inhibitor of α 2 δ subunit-containing VGCCs and, to a lesser extent, GABA B receptor agonist. Baclofen (β-(4-chlorophenyl)-GABA) – antispasmodic drug; potent GABA B receptor agonist, weak inhibitor of α 2 δ subunit-containing VGCCs; Tolibut (β-(4-methylphenyl)-GABA ...