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A GABA reuptake inhibitor (GRI) is a type of drug which acts as a reuptake inhibitor for the neurotransmitter gamma-Aminobutyric acid (GABA) by blocking the action of the gamma-Aminobutyric acid transporters (GATs). This in turn leads to increased extracellular concentrations of GABA and therefore an increase in GABAergic neurotransmission. [1]
Further, they have fewer and milder side effects. Tricyclic antidepressants also have a higher risk of serious cardiovascular side effects, which SSRIs lack. SSRIs act on signal pathways such as cyclic adenosine monophosphate (cAMP) on the postsynaptic neuronal cell, which leads to the release of brain-derived neurotrophic factor (BDNF). BDNF ...
Fluoxetine, sold under the brand name Prozac, among others, is an antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class [2] used for the treatment of major depressive disorder, anxiety, obsessive–compulsive disorder (OCD), panic disorder, premenstrual dysphoric disorder, and bulimia nervosa. [2]
The common downsides of SSRIs? Side effects. SSRIs are generally less likely to cause side effects than older antidepressants, but adverse effects still happen for some people. Common SSRI side ...
Antidepressant efficacy of dextromethorphan/bupropion (Auvelity) versus placebo in the GEMINI clinical trial. [1] [3] [4] [5] The scores shown are the mean total depression scores on the MADRS over 6 weeks. Only 124/156 patients completed 6 weeks of Auvelity while 150/162 patients completed 6 weeks of placebo, consistent with a high rate of ...
With respect to tricyclic antidepressants, only clomipramine and imipramine have a risk of causing SS. [32] Many medications may have been incorrectly thought to cause SS. For example, some case reports have implicated atypical antipsychotics in SS, but it appears based on their pharmacology that they are unlikely to cause the syndrome. [33]
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 ...
Cross-tolerance is a phenomenon that occurs when tolerance to the effects of a certain drug produces tolerance to another drug. It often happens between two drugs with similar functions or effects—for example, acting on the same cell receptor or affecting the transmission of certain neurotransmitters.