Indian Journal of Anaesthesia

: 2011  |  Volume : 55  |  Issue : 4  |  Page : 426--427

Rate of administration of intravenous ondansetron

Smita Prakash, Meenu Aggarwal 
 Department of Anaesthesia and Intensive Care, Vardhman Mahavir Medical College and Safdarjang Hospital, New Delhi, India

Correspondence Address:
Smita Prakash
C 17 HUDCO Place, New Delhi - 110 049

How to cite this article:
Prakash S, Aggarwal M. Rate of administration of intravenous ondansetron.Indian J Anaesth 2011;55:426-427

How to cite this URL:
Prakash S, Aggarwal M. Rate of administration of intravenous ondansetron. Indian J Anaesth [serial online] 2011 [cited 2021 Jan 20 ];55:426-427
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Ondansetron, a selective 5- HT 3 receptor antagonist, is a popular drug for prevention and treatment of postoperative nausea and vomiting (PONV) because of its efficacy, safety and lack of drug interactions. Although rare, cardiovascular adverse effects such as sinus bradycardia, atrial fibrillation, prolongation of QTc interval and fatal ventricular tachycardia have been reported following administration of ondansetron. [1],[2],[3],[4] A case of severe bradycardia with respiratory arrest and loss of consciousness has been described. [5] Most of the case reports regarding serious adverse effects, including that reported in Indian Journal of Anaesthesia by Sahu et al., [4] do not describe the rate at which ondansetron had been administered to the patient. It is not uncommon for residents to administer ondansetron as a bolus perioperatively. Not many clinicians are aware that ondansetron 4 to 8 mg iv should be administered over 2 to 5 min [6] and certainly not as a bolus or in less than 30 s. Perhaps slow administration of ondansetron as recommended over 2-5 min would decrease the incidence of potentially life-threatening adverse effects associated with ondansetron.


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