Key takeaways
Trifluoperazine and quetiapine (Seroquel) are both antipsychotic medications, but they belong to different classes and have distinct uses and side effects. Trifluoperazine is a first-generation (typical) antipsychotic mainly used for schizophrenia and short-term treatment of anxiety, while quetiapine is a second-generation (atypical) antipsychotic used for schizophrenia, bipolar disorder, and depression. Trifluoperazine works by making the brain less sensitive to dopamine, whereas quetiapine balances dopamine and serotonin levels. Trifluoperazine is not recommended for long-term use due to the risk of tardive dyskinesia, a condition causing uncontrollable movements, while quetiapine can be used longer but has higher risk of weight gain and high cholesterol levels. Quetiapine is available in both immediate-release and extended-release forms, offering more flexibility in dosing, whereas trifluoperazine is typically taken twice daily. Both medications are available as lower-cost generics.
