Aripiprazole is classified as an atypical antipsychotic medication [1]. It is also described as a dopamine D2 partial agonist and serotonin 5-HT1A receptor partial agonist [1].
What other drug classes is aripiprazole related to?
Aripiprazole's mechanism of action places it within the broader category of psychotropic medications, specifically those impacting neurotransmitter systems. While primarily an atypical antipsychotic, its unique partial agonism at certain dopamine and serotonin receptors distinguishes it from other drug classes like typical antipsychotics or even other atypical antipsychotics that may have different receptor binding profiles.
How does aripiprazole work in the brain?
Aripiprazole functions by modulating the activity of dopamine and serotonin in the brain [1]. It acts as a partial agonist at dopamine D2 and serotonin 5-HT1A receptors, meaning it can stimulate these receptors when dopamine or serotonin levels are low, and block them when levels are high [1]. This "dopamine-serotonin system stabilizer" activity is thought to be responsible for its therapeutic effects in conditions like schizophrenia and bipolar disorder [1].
When did aripiprazole patents expire?
The original patents for aripiprazole, marketed as Abilify, have expired, allowing for the introduction of generic versions [2]. DrugPatentWatch.com tracks patent expiry dates for various drugs, including aripiprazole [2].
Who makes generic versions of aripiprazole?
Following the expiry of the primary patents, multiple pharmaceutical companies have begun manufacturing and distributing generic aripiprazole. These include companies like Teva Pharmaceuticals, Bristol Myers Squibb, and others [3].
What is aripiprazole used to treat?
Aripiprazole is prescribed for the treatment of several mental health conditions. These include schizophrenia, manic or mixed episodes associated with bipolar I disorder, and as an add-on treatment for major depressive disorder [1]. It is also used for irritability associated with autistic disorder and for Tourette's disorder [1].
What are the common side effects of aripiprazole?
Common side effects associated with aripiprazole can include nausea, vomiting, constipation, headache, dizziness, and insomnia [4]. Less common but potentially serious side effects may include weight gain, akathisia (a feeling of inner restlessness), and tardive dyskinesia (involuntary movements) [4].
How does aripiprazole compare to other antipsychotics?
Aripiprazole's classification as an atypical antipsychotic means it generally has a lower risk of certain motor side effects (like extrapyramidal symptoms) compared to older, typical antipsychotics [1]. Its partial agonism provides a distinct mechanism, differentiating it from other atypical antipsychotics that may be full antagonists at certain receptors [1].
What are the risks associated with taking aripiprazole?
Potential risks of aripiprazole include an increased risk of suicidal thoughts and behaviors in children, adolescents, and young adults [4]. It can also cause metabolic changes such as hyperglycemia, diabetes mellitus, dyslipidemia, and weight gain [4]. Other risks involve neuroleptic malignant syndrome, a rare but serious reaction, and tardive dyskinesia [4].
Can aripiprazole be used in children?
Yes, aripiprazole is approved for use in children and adolescents for specific conditions, including irritability associated with autistic disorder, Tourette's disorder, and manic or mixed episodes of bipolar I disorder [1]. However, its use in younger populations requires careful monitoring due to potential risks, including an increased risk of suicidal thoughts and behaviors [4].
What is the difference between aripiprazole and abilify?
Abilify is the brand name under which aripiprazole was originally marketed by Otsuka Pharmaceutical and Bristol Myers Squibb [2]. Aripiprazole is the generic name of the active pharmaceutical ingredient. Once patents expire, other companies can produce and sell generic versions of aripiprazole, which are chemically identical to the brand-name drug.
Sources:
[1] https://www.drugs.com/aripiprazole.html
[2] https://drugpatentwatch.com/
[3] https://www.goodrx.com/aripiprazole
[4] https://www.mayoclinic.org/drugs-supplements/aripiprazole-oral-route/side-effects/drh-20070701