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Related Experiment Videos

Benzamides and cholinesterases.

C Vacca, S Maione, A Tozzi

    Research Communications in Chemical Pathology and Pharmacology
    |February 1, 1987
    PubMed
    Summary
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    Certain doses of metoclopramide (MT), sulpiride, and bromopride exhibit anti-cholinesterase effects. Metoclopramide showed a more potent effect than other drugs tested, except for prostigmine.

    Area of Science:

    • Pharmacology
    • Biochemistry

    Background:

    • Cholinesterase enzymes are crucial for neurotransmission.
    • Metoclopramide (MT) is a widely used antiemetic drug.

    Purpose of the Study:

    • To investigate the potential anti-cholinesterase effects of metoclopramide (MT), sulpiride, and bromopride.
    • To compare the potency of these drugs' anti-cholinesterase activity.

    Main Methods:

    • In vitro studies on rabbit and dog serum and erythrocyte cholinesterases.
    • Assessment of the hypotensive effect of acetylcholine (ACh) with and without MT in rabbit serum.

    Main Results:

    • Metoclopramide (MT), sulpiride, and bromopride demonstrated dose-dependent anti-cholinesterase activity.
    • MT exhibited a stronger anti-cholinesterase effect compared to sulpiride, bromopride, procainamide, and procaine.

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  • The anti-cholinesterase potency of MT was less than that of prostigmine.

    • Conclusions:

    • Metoclopramide (MT) possesses significant anti-cholinesterase properties.
    • These findings suggest a potential mechanism beyond dopamine antagonism for MT's effects.
    • Further research is warranted to explore the clinical implications of MT's anti-cholinesterase activity.