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A study to find the best dose of olanzapine combined with ondansetron to prevent nausea and vomiting after keyhole abdominal surgery under general anaesthesia

Comparison of two different doses of olanzapine in addition to ondansetron for prevention of post operative nausea vomiting in patients undergoing laparoscopic abdominal surgery under general anaesthesia in a tertiary care teaching hospital - Nil

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/05/111427
Enrollment
111
Registered
2026-05-29
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Health Condition 1: K802- Calculus of gallbladder without cholecystitis

Interventions

Intervention1: Olanzapine 5mg andOndansetron: Oral olanzapine 5 mg will be administered 1 hour before surgery with a sip of water. All patients will receive intravenous ondansetron 4 mg 30 minutes bef

Sponsors

Kirandeep Kour
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients aged 18 to 60 years undergoing laparoscopic abdominal surgery under general anaesthesia with ASA physical status grade I and II and who provide written informed consent will be included in the study.

Exclusion criteria

Exclusion criteria: Patients with age less than 18 years or more than 60 years. ASA grade III or IV. Patients with cardiac arrhythmias including ventricular tachycardia, ventricular fibrillation, torsades de pointes or QTc greater than 450 ms. Patients with history of myocardial infarction, congestive heart failure or angina. Patients with neurological disorders including Parkinson disease or dementia. Known allergy to olanzapine. Pregnant or lactating females. Patients unwilling to participate in the study.

Design outcomes

Primary

MeasureTime frame
Incidence of postoperative nausea and vomiting (PONV) within 24 hours after surgery using PONV intensity scaleTimepoint: 0 to 24 hrs postoperatively

Secondary

MeasureTime frame
Time to first rescue antiemeticTimepoint: 0 to 24 hrs postoperatively

Countries

India

Contacts

Public ContactDr Arti Mahajan

Gmc jammu

Artimahajan739@gmail.com9419185783

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Jun 11, 2026