A ligand that binds to a receptor and changes the receptor's state to cause a biological response is an antagonist.
A complete agonist activates the system's maximum reaction capacity.
Even with 100% receptor occupancy, a partial agonist falls short of the system's maximum response capacity.
When a full agonist is present, a partial agonist becomes an antagonist (if they compete for the same receptors)
A ligand known as an inverse agonist decreases the proportion of receptors in an active state by binding to them.
An allosteric modulator has no impact on its own but boosts (or diminishes) the effects of a primary agonist.
You must have a solid foundation in basic neuroscience in order to be a successful psychiatric mental health nurse practitioner. This includes understanding the antagonist-to-antagonist spectrum of action of psychopharmacologic agents
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