Wednesday, November 7, 2018

EPS in anti-psychotics

Q: Among the second-generation antipsychotics (SGAs) (atypical antipsychotics), which of the following has the highest risk of Extrapyramidal side effects (EPS)?

A) risperidone 
B) aripiprazole 
C) asenapine 
D) quetiapine 
E) clozapine


Answer: A

Out of all the SGAs, risperidone carries the highest risk of EPS. Ideally, it should not be used beyond 4 mg/day. Aripiprazole, asenapine, cariprazine, lurasidone, and paliperidone also carries some risk for EPS but less than risperidone.

Quetiapine and clozapine are considered the safest.


#neurology
#psychiatry
#pharmacology



References:

1. Marder SR, Meibach RC. Risperidone in the treatment of schizophrenia. Am J Psychiatry 1994; 151:825. 

2. Peuskens J. Risperidone in the treatment of patients with chronic schizophrenia: a multi-national, multi-centre, double-blind, parallel-group study versus haloperidol. Risperidone Study Group. Br J Psychiatry 1995; 166:712. 

3. Seppi K, Weintraub D, Coelho M, et al. The Movement Disorder Society Evidence-Based Medicine Review Update: Treatments for the non-motor symptoms of Parkinson's disease. Mov Disord 2011; 26 Suppl 3:S42.

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