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Arch Pediatr Adolesc Med. 2004 Mar;158(3):250-4.

Dexamethasone for the treatment of sore throat in children with suspected infectious mononucleosis: a randomized, double-blind, placebo-controlled, clinical trial.

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  • 1Division of Emergency Medicine, Hôpital Ste-Justine, Université de Montréal, Quebec, Canada.



To evaluate the efficacy of a single oral dose of dexamethasone for pain relief in acute exudative pharyngitis associated with infectious mononucleosis.


We conducted a randomized, double-blind, placebo-controlled pediatric emergency department-based clinical trial. Patients aged between 8 and 18 years with a sore throat from clinically suspected infectious mononucleosis were eligible. Patients were randomized to receive either an oral dose of 0.3 mg/kg (maximum, 15 mg) of dexamethasone or a placebo. Patients completed a diary of symptoms and rated their pain on a visual analog scale from 0 to 100 mm at 0 hours, 12 hours, 24 hours, 48 hours, 72 hours, and on day 7. An improvement of 20 mm from baseline on the visual analog scale was evaluated as the primary end point.


Twenty patients were recruited in each group; mean +/- SD age was 13.5 +/- 2.8 years. In comparison with the placebo group, a significantly greater proportion of patients given dexamethasone achieved pain relief within the first 12 hours (12/20 vs 5/19; P =.03). On further follow-up, the proportions achieving pain relief were similar between groups: 11 of 20 vs 6 of 20 at 24 hours (P =.10); 11 of 20 vs 11 of 20 at 48 hours (P>.99); 15 of 20 vs 15 of 19 at 72 hours (P =.93); and 18 of 19 vs 19 of 20 at day 7 (P>.99), with dexamethasone vs placebo, respectively.


The short-lived relief of pain in acute exudative pharyngitis in children with suspected infectious mononucleosis may suggest that a single oral dose of dexamethasone may not be sufficient and that additional doses may be necessary for ensuring lasting relief.

[PubMed - indexed for MEDLINE]
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