GENERIC NAME: paliperidone palmitate
BRAND NAME: Invega Sustenna
DRUG CLASS AND MECHANISM: Invega Sustenna (paliperidone palmitate) is an atypical antipsychotic used to treat schizophrenia. It is a long acting form of paliperidone (Invega). Other atypical antipsychotic drugs include
- olanzapine (Zyprexa),
- quetiapine (Seroquel),
- ziprasidone (Geodon),
- iloperidone (Fanapt),
- asenapine (Saphris) and
- aripiprazole (Abilify).
Atypical antipsychotics differ from typical antipsychotics because they cause a lesser degree of movement (extrapyramidal) side effects and constipation.
The exact mechanism of action of paliperidone is not known, but, like other anti-psychotics, it is believed that paliperidone affects the way the brain works by interfering with communication among the brain's nerves. Nerves communicate with each other by making and releasing chemicals called neurotransmitters. The neurotransmitters travel to other nearby nerves where they attach to receptors on the nerves. The attachment of the neurotransmitters either stimulates or inhibits the function of the nearby nerves. Paliperidone blocks several of the receptors on nerves including dopamine type 2, serotonin type 2, and alpha 2 adrenergic receptors. It is believed that many psychotic illnesses are caused by abnormal communication among nerves in the brain and that by altering communication through neurotransmitters, paliperidone can alter the psychotic state. Invega Sustenna was approved by the FDA in July 2009.
Quick GuideSchizophrenia: Symptoms, Types, Causes, Treatment
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