Tepirindole

A reversible inhibitor of monoamine oxidase A

Tepirindole
[[File: Chemical structure of Tepirindole |frameless|220px|alt=|]]
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CAS Number	24139-02-6
PubChem	3047805
DrugBank
ChemSpider	2310100
KEGG	D06078

Tepirindole is a pharmaceutical compound classified as a reversible inhibitor of monoamine oxidase A (RIMA). It is primarily used in the treatment of depression, particularly in cases where patients do not respond adequately to other antidepressant medications.

Pharmacology

Tepirindole functions by selectively inhibiting the enzyme monoamine oxidase A (MAO-A), which is responsible for the breakdown of monoamines such as serotonin, norepinephrine, and dopamine. By inhibiting this enzyme, tepirindole increases the availability of these neurotransmitters in the synaptic cleft, thereby enhancing mood and alleviating symptoms of depression.

Unlike traditional monoamine oxidase inhibitors (MAOIs), tepirindole is a reversible inhibitor, meaning it temporarily binds to the enzyme and can be displaced by high concentrations of substrate. This property reduces the risk of hypertensive crisis associated with dietary tyramine intake, a common concern with irreversible MAOIs.

Clinical Use

Tepirindole is indicated for the treatment of major depressive disorder, particularly in patients who have not responded to other treatments. Its use is less common compared to other antidepressants, and it is typically considered when other options have failed or are contraindicated.

Side Effects

Common side effects of tepirindole include nausea, dizziness, and insomnia. As with other MAOIs, there is a potential for drug interactions, and patients are advised to avoid certain medications and foods high in tyramine.

Mechanism of Action

The mechanism of action of tepirindole involves the selective and reversible inhibition of MAO-A. This enzyme is primarily responsible for the catabolism of serotonin and norepinephrine, neurotransmitters that play a crucial role in mood regulation. By inhibiting MAO-A, tepirindole increases the levels of these neurotransmitters, thereby exerting its antidepressant effects.

Chemical Properties

Tepirindole is chemically known as 5,6,7,8-tetrahydro-1,2,3,4-tetrahydroacridin-9-amine. It is a derivative of acridine, a compound known for its diverse biological activities. The chemical structure of tepirindole is characterized by a tricyclic ring system, which is common among many antidepressant agents.

Related Pages

• Monoamine oxidase inhibitor
• Depression (mood)
• Serotonin
• Norepinephrine
• Dopamine