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Acetaminophen in the treatment of schizophrenia

Acetaminophen as an adjuvant in the treatment of chronic schizophrenia: a double blind and randomised trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT201410251556N67
Enrollment
50
Registered
2014-10-28
Start date
2014-11-03
Completion date
Unknown
Last updated
2018-02-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

schizophrenia. schizophrenia

Interventions

Intervention 1: Tablets Risperidone (6 mg/day) combined with 325 mg/day Acetaminophen as intervention group for 8 weeks. Intervention 2: Tablet Risperidone (6 mg/day) combined with placebo as control
Treatment - Drugs
Placebo
Tablets Risperidone (6 mg/day) combined with 325 mg/day Acetaminophen as intervention group for 8 weeks

Sponsors

Tehran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Inclusion Criteria:1-Diagnosis of Schizophrenia based on DSM-5 criteria;2- Minimum Score of 60 on Positive and Negative Scale 3- Age between 18-55; 4- chronic Schizophrenia- duration of the disorder more than 2 years; ; 6-Minimum score of 20 in negative suscale Exclusion Criteria:1-any other major mental disorder based on DSM-5; 2-Any serious medical or neurological problem; 3- IQ less than 70;4- Substance dependence during the last 6 months(except for nicotine and caffeine) 5-receiving oral antipsychotic medications during the last week or receiving any depot antipsychotic medication during the last month; ;6-receiving ECT during the last 14 days,7-hepatic and renal disease; 7- history of abnormal bleeding

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Severity of schizophrenia. Timepoint: Baseline and weeks 2-4-8 after beginig of treatment. Method of measurement: by Positive and Negative Symptoms Scale(PANSS).

Secondary

MeasureTime frame
Extrapyramidal side effects. Timepoint: Baseline and weeks 2-4-6-8 after beginig of treatment. Method of measurement: by Extrapyramidal Symptoms Rating Scale.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactProf. Shahin Akhondzadeh

Tehran University of Medical Sciences

s.akhond@neda.net; sakhond@yahoo.com; s.akhond@sina.tums.ac.ir+98 21 5541 2222

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026