Irreversible agonist

An irreversible agonist is a type of agonist that binds permanently to a receptor in such a manner that the receptor is permanently activated. It is distinct from a mere (reversible) agonist in that the association of an agonist to a receptor is reversible, whereas the binding of an irreversible agonist to a receptor is, at least in theory, irreversible. Oxymorphazone is an example of an irreversible agonist.[1] In practice, the distinction may be more a matter of degree, in which the binding affinity of an irreversible agonist is some orders of magnitude greater than that of an agonist.

Examples

  • Oxymorphazone
  • Metaphit

See also

  • Agonist
  • Irreversible antagonist
  • Irreversible enzyme inhibitor

References

  1. ^ Galetta S, Ling GS, Wolfin L, Pasternak GW (Sep 1982), "Receptor binding and analgesic properties of oxymorphazone", Life Sciences, 31 (12–13): 1389–92, doi:10.1016/0024-3205(82)90388-5, PMID 6183551
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