via indirect alteration of an endogenous agonist

Last reviewed 01/2018

Drugs may act via an indirect alteration of the effect of an endogenous agonist as follows:

  • physiological antagonism - glucagon vs insulin
  • increase in endogenous release - Ecstasy
  • inhibition of endogenous re-uptake - tricyclics
  • inhibition of endogenous metabolism - selegiline
  • prevention of endogenous release - chromoglycate