Patterns of utilization of antipsychotic drugs and direct medical costs among patients with schizophrenia in a tertiary care hospital

doi:10.5498/wjp.v16.i1.109365

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World Journal of Psychiatry

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2220-3206

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Psychiatry. Jan 19, 2026; 16(1): 109365
Published online Jan 19, 2026. doi: 10.5498/wjp.v16.i1.109365

Table 4 Anatomical therapeutic chemical/defined daily dose classification with calculated daily defined dose per 1000 inhabitants per day, prescribed daily dose, and prescribed daily dose/daily defined dose ratio

Drug	ATC code	DDD (mg)	DID (mg)	PDD (mg)	PDD/DDD
Fluphenazine	N05AB02	1	0.0794	1.40	1.400
Trifluoperazine	N05AB06	20	0.0030	7.59	0.380
Haloperidol	N05AD01	8	0	4.50	0.560
Olanzapine	N05AH03	10	1.5600	14.36	1.436
Risperidone	N05AX08	5	0.3745	3.55	0.710
Aripiprazole	N05AX12	15	0.2237	11.56	0.770
Amisulpride	N05AL05	400	0.0755	212.95	0.530
Quetiapine	N05AH04	400	0.0062	78.53	0.190
Lurasidone	N05AE05	60	0.0184	48.17	0.800
Clozapine	N05AH02	300	0.0066	185.38	0.620

ATC: Anatomical therapeutic chemical; DDD: Defined daily dose; DID: Daily defined dose per 1000 inhabitants per day; PDD: Prescribed daily dose.

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Citation: Haider A, Saha L, Basu D. Patterns of utilization of antipsychotic drugs and direct medical costs among patients with schizophrenia in a tertiary care hospital. World J Psychiatry 2026; 16(1): 109365
URL: https://www.wjgnet.com/2220-3206/full/v16/i1/109365.htm
DOI: https://dx.doi.org/10.5498/wjp.v16.i1.109365

Haider A, Saha L, Basu D. Patterns of utilization of antipsychotic drugs and direct medical costs among patients with schizophrenia in a tertiary care hospital. World J Psychiatry 2026; 16(1): 109365 [PMID: 41607431 DOI: 10.5498/wjp.v16.i1.109365]

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