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Calcium antagonism: a new approach.

W G Nayler

    Clinical and Experimental Pharmacology & Physiology. Supplement
    |January 1, 1982
    PubMed
    Summary

    Calcium antagonists, also known as calcium entry blockers, are diverse substances that block calcium ion (Ca2+) influx. They can be classified by their chemical nature and where they act in the body.

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    Area of Science:

    • Pharmacology
    • Cardiovascular Physiology

    Background:

    • Calcium antagonists are a diverse group of drugs.
    • They function by inhibiting voltage-activated inward calcium ion (Ca2+) displacement.
    • Understanding their classification and action is crucial in pharmacology.

    Purpose of the Study:

    • To provide a comprehensive overview of calcium antagonists.
    • To classify these compounds based on chemical and functional properties.
    • To highlight potential additional pharmacological properties.

    Main Methods:

    • Literature review and synthesis of existing data.
    • Classification based on chemical structure (organic/inorganic).
    • Categorization by primary site of action (myocardium, vascular, nodal tissue).

    Main Results:

    • Calcium antagonists are chemically diverse (organic and inorganic).
    • They exhibit varied tissue specificity, acting on myocardium, vasculature, or nodal tissue.
    • Some agents possess additional, potentially significant pharmacological actions beyond calcium channel blockade.

    Conclusions:

    • Calcium antagonists represent a heterogeneous pharmacological class.
    • Their classification aids in understanding their diverse applications.
    • Further research into the additional properties of these agents is warranted.

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