Partial receptor activation means that a bound drug produces a response below that of a full agonist in the same experimental system. The medicine still activates the receptor; it is not simply an antagonist with…Continue Reading
A D2 partial agonist can occupy receptors that dopamine might otherwise activate. When it replaces a stronger agonist, the resulting signalling can be lower. This helps explain how a drug that activates dopamine receptors can…Continue Reading
Aripiprazole is an antipsychotic with partial agonist activity at D2 and 5-HT1A receptors and antagonist activity at 5-HT2A receptors. It is used for several indications depending on the formulation and country. Its receptor pattern differs…Continue Reading
Brexpiprazole and cariprazine are D2 partial agonists with different additional pharmacological properties. Cariprazine has particularly high affinity for D3 receptors and long-lasting active metabolites. Brexpiprazole also affects serotonin and adrenergic targets. These differences mean the…Continue Reading
D2 partial agonists can provide antipsychotic benefit with a different balance of effects from conventional antagonists. Lower prolactin burden can be helpful for some people. However, akathisia, activating effects, sleep problems and weight changes remain…Continue Reading