Ear, nose, & throat journal
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Randomized Controlled Trial Multicenter Study
Effects of chlorhexidine/benzydamine mouth spray on pain and quality of life in acute viral pharyngitis: a prospective, randomized, double-blind, placebo-controlled, multicenter study.
We conducted a prospective, randomized, double-blind, placebo-controlled, multicenter study to assess the efficacy of chlorhexidine gluconate/benzydamine HCl mouth spray for reducing pain and improving quality of life in patients with acute viral pharyngitis. Prior to treatment, patients rated the intensity of their pain on a visual analog scale and evaluated their quality of life on the 36-Item Short-Form Health Survey. Patients were then randomized to receive either paracetamol (acetaminophen) plus chlorhexidine/benzydamine or paracetamol plus placebo for 7 days. ⋯ A comparison of self-evaluations revealed that the active treatment group reported less pain on both day 3 (p < 0.001) and day 7 (p = 0.002). Likewise, the chlorhexidine/benzydamine group reported a significantly better quality of life on day 7 (p < 0.001). Chlorhexidine/benzydamine was well tolerated, and no serious adverse events were observed.