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for educational and safety purposes
Aripiprazole and Quetiapine both come up in the same conversations; they overlap on dopamine D2 receptors. Aripiprazole: Aripiprazole is a second-generation (atypical) antipsychotic used in schizophrenia, bipolar disorder and as an adjunct in major depression. Quetiapine: Quetiapine is an atypical, or second-generation, antipsychotic used to treat schizophrenia, bipolar disorder, and, as an add-on, major depression.
Aripiprazole is a second-generation (atypical) antipsychotic used in schizophrenia, bipolar disorder and as an adjunct in major depression. Rather than fully blocking dopamine D2 receptors like older agents, it acts as a high-affinity partial agonist, combined with partial agonism at serotonin 5-HT1A and antagonism at 5-HT2A receptors, so that it behaves as a dopamine system stabilizer that dampens signaling where dopamine is excessive and supports it where dopamine is deficient. This mechanism gives it antipsychotic efficacy comparable to other agents with relatively little sedation, weight gain, movement disorder or prolactin elevation, and it is also formulated as a long-acting monthly injection to support adherence. The same partial-agonist pharmacology, however, can occasionally provoke impulse-control problems such as pathological gambling, an effect it shares with dopamine agonists.
Quetiapine is an atypical, or second-generation, antipsychotic used to treat schizophrenia, bipolar disorder, and, as an add-on, major depression. Its effects are strongly shaped by dose and by its active metabolite norquetiapine, which inhibits the norepinephrine transporter and modulates several serotonin receptors, giving quetiapine genuine antidepressant activity; at low doses its dominant action is sedating H1-antihistamine blockade with little dopamine occupancy, while antipsychotic dopamine blockade emerges only at higher doses. Marketed originally as Seroquel and now generic, it is on the World Health Organization list of essential medicines and is also widely, though generally discouraged, prescribed off-label as a sedative for insomnia.
both fingerprints on one instrument; where the marks line up the two compounds work the same lever, where a slot goes dark only one of them touches it. read straight from each entry's affinity table; nothing here is invented.
modulates
antagonist
antagonist
antagonist
activates
activates
modulates
antagonist
antagonist
antagonist
inhibits
strengths are the entries' qualitative ratings (strong / moderate / weak); Ki and EC50 figures appear where an entry records them.