Ziprasidone
生产企业：Pfizer inc
Ziprasidone is an atypical antipsychotic used to manage schizophrenia, bipolar mania, and agitation in patients with schizophrenia.
Ziprasidone is an atypical antipsychotic used to manage schizophrenia, bipolar mania, and agitation in patients with schizophrenia.
The effects of ziprasidone are differentiated from other antispychotics based on its preference and affinity for certain receptors. Ziprasidone binds to serotonin-2A (5-HT2A) and dopamine D2 receptors in a similar fashion to other atypical antipsychotics; however, one key difference is that ziprasidone has a higher 5-HT2A/D2 receptor affinity ratio when compared to other antipsychotics such as olanzapine, quetiapine, risperidone, and aripiprazole. Ziprasidone offers enhanced modulation of mood, notable negative symptom relief, overall cognitive improvement and reduced motor dysfunction which is linked to it's potent interaction with 5-HT2C, 5-HT1D, and 5-HT1A receptors in brain tissue. Ziprasidone can bind moderately to norepinephrine and serotonin reuptake sites which may contribute to its antidepressant and anxiolytic activity. Patient's taking ziprasidone will likely experience a lower incidence of orthostatic hypotension, cognitive disturbance, sedation, weight gain, and disruption in prolactin levels since ziprasidone has a lower affinity for histamine H1, muscarinic M1, and alpha1-adrenoceptors.
In its oral form, ziprasidone is approved for the treatment of schizophrenia, as monotherapy for acute treatment of manic or mixed episodes related to bipolar I disorder, and as adjunctive therapy to lithium or valproate for maintenance treatment of bipolar I disorder. The injectable formulation is approved only for treatment of acute agitation in schizophrenia.
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