(2R,3R)-Hydroxybupropion
Metabolite of bupropion
-Hydroxybupropion.svg)
(2R,3R)-Hydroxybupropion is a pharmacologically active metabolite of the antidepressant and smoking cessation aid bupropion. It is one of the major metabolites formed during the metabolism of bupropion in the human body.
Chemical Structure and Properties[edit | edit source]
(2R,3R)-Hydroxybupropion is a chiral compound, meaning it has a specific three-dimensional arrangement of atoms that is not superimposable on its mirror image. The chemical structure of (2R,3R)-Hydroxybupropion includes a hydroxyl group attached to the bupropion molecule, which significantly influences its pharmacological activity.
Pharmacology[edit | edit source]
(2R,3R)-Hydroxybupropion is known to contribute to the therapeutic effects of bupropion. It acts as a norepinephrine-dopamine reuptake inhibitor (NDRI), similar to its parent compound. This action increases the levels of the neurotransmitters norepinephrine and dopamine in the brain, which are associated with mood regulation and reward pathways.
Metabolism[edit | edit source]
Bupropion is metabolized in the liver primarily by the enzyme cytochrome P450 2B6 (CYP2B6) to form (2R,3R)-Hydroxybupropion. This metabolite is present in higher concentrations in the plasma than bupropion itself, indicating its significant role in the drug's overall pharmacological profile.
Clinical Significance[edit | edit source]
The presence of (2R,3R)-Hydroxybupropion is important for the clinical efficacy of bupropion. It is believed to contribute to both the antidepressant and smoking cessation effects of the drug. The metabolite's activity as an NDRI supports the therapeutic outcomes observed in patients using bupropion for these indications.
Safety and Side Effects[edit | edit source]
While (2R,3R)-Hydroxybupropion contributes to the therapeutic effects of bupropion, it may also be involved in some of the side effects associated with the parent drug. Common side effects of bupropion include insomnia, dry mouth, and dizziness, which may be partly attributed to the action of its metabolites.
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