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Table 1 Antipsychotic formulations and side-effect profiles

From: Management of constipation in patients with schizophrenia—a case study and review of literature

Name

Route

Likelihood of Induced Constipation

Notes

Olanzapine

IM

++

Constipation secondary to weight gain, metabolic issues

PO

Clozapine

PO

+++

Constipation secondary Metabolic issues

Chlorpromazine

PO

++

Anticholinergic, Atony of colon

Thioridazine

PO

+++

Anticholinergic

IM

  1. ++ moderate/occurs frequently, +++ severe/occurs most of the time