• Corpus ID: 7989979

Butterbur Ze 339 for the Treatment of Intermittent Allergic Rhinitis Dose-Dependent Efficacy in a Prospective , Randomized , Double-blind , Placebo-Controlled Study

  title={Butterbur Ze 339 for the Treatment of Intermittent Allergic Rhinitis Dose-Dependent Efficacy in a Prospective , Randomized , Double-blind , Placebo-Controlled Study},
  author={Andreas Schapowal}
Results: Improvement in the main efficacy variable was significantly superior in the Butterbur Ze339 groups, relative to placebo, and a significant dose relationship was observed between the 2 Butterbur doses. The clinicians’ assessment of efficacy and the overall responder rates were significantly superior for the active groups compared with placebo. The incidence and type of adverse events were indistinguishable across the herbal treatment and placebo groups. 
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