Related Experiment Video
Updated: Aug 16, 2025

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations
Published on: July 24, 2021
Combination of two long-acting injectable antipsychotics in treatment-resistant schizophrenia: A retrospective
Nathalia Calvin1, Laurence Minischetti2, Florent Salanon2
1Univ. Grenoble Alpes, France.
Abstract:
To evaluate the efficacy and tolerability of the combination of two long-acting injections of antipsychotics (dual-LAIs) in non-adherent and resistant schizophrenia. Efficacy and tolerability were assessed in 13 patients admitted to a French hospital, using a retrospective 12-month mirror-image design. The number and total duration of hospitalizations significantly decreased after introducing dual-LAIs (2.6 vs. 1.3, P = 0.017; 142 days vs. 95 days, P = 0.046). The average duration of each hospitalization did not differ. No significant differences were observed in tolerance outcomes (body mass index, agranulocytosis, lipid profile, sugar levels). Patients with treatment-resistant schizophrenia and poor medication adherence can derive significant clinical benefits from dual-LAIs.
Related Concept Videos
Drug Therapy
Antianxiety Medications
Psychosis and Antipsychotic Drugs: Overview
Psychosis: Goals of Pharmacotherapy
Antipsychotic Drugs: Typical and Atypical Agents
Antidepressant Drugs: MAOIs and Other Agents
Antipsychotic Drugs: Therapeutic Uses and Side Effects
Despite these side effects, antipsychotics are used therapeutically for various purposes, including managing schizophrenia, preventing nausea and vomiting, curbing...

