Metamizole sodium: In addition to analgesia, it also has anti-inflammatory effects. The exact mechanism of action is not known. It is hypothetically assumed that the metabolites of this substance are cannabinoids. If this were true, it would mean that this substance would have an extremely wide range of uses.
N02BB02 Metamizole sodium
https://en.wikipedia.org/wiki/Metamizole
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Paracetamol also modulates the endogenous cannabinoid system. It affects only the CB1 receptor.
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flupirtine, Flupirtine , NMDA antagonist, GABAA modulator, potassium channel blocker
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Pizotifen, pizotifen , anti-migraine, antagonist of two types of serotonin receptors, antihistaminic and anti-acetylcholine effects
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N03AG04, https://en.wikipedia.org/wiki/Vigabatrin , Vigabatrin, structurally similar to GABA
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https://en.wikipedia.org/wiki/Gamma-Aminobutyric_acid , Gamma-aminobutyric acid, GABA affects muscle tone
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Felbamate, NMDA antagonist, GABA agonist
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Levetiracetam, structurally similar to Piracetam, acts on GABA and NMDA receptors.
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Zonisamide, GABA, NMDA
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Pregabalin, https://en.wikipedia.org/wiki/Pregabalin , structurally has a lot in common with GABA
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https://en.wikipedia.org/wiki/Perampanel , Perampanel, a selective AMPA receptor antagonist
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https://en.wikipedia.org/wiki/Retigabine , Retigabine, non-selective NMDA