Efficacy of a Nasal Spray from Citrus limon and Cydonia oblonga for the Treatment of Hay Fever Symptoms-A Randomized, Placebo Controlled Cross-Over Study.
Nasal spray from lemon and quince (LQNS) is used to treat hay fever symptoms and has been shown to inhibit histamine release from mast cells in vitro. Forty-three patients with grass pollen allergy (GPA) were randomized to be treated either with placebo or LQNS for one week, respectively, in a cross-over study. At baseline and after the respective treatments patients were provoked with grass pollen allergen. Outcome parameters were nasal flow measured with rhinomanometry (primary), a nasal symptom score, histamine in the nasal mucus and tolerability. In the per protocol population absolute inspiratory nasal flow 10 and 20 min after provocation was higher with LQNS compared to placebo (-37 ± 87 mL/s; p = 0.027 and -44 ± 85 mL/s; p = 0.022). The nasal symptom score showed a trend (3.3 ± 1.8 in the placebo and 2.8 ± 1.5 in the LQNS group; p = 0.070) in favor of LQNS; the histamine concentration was not significantly different between the groups. Tolerability of both, LQNS and placebo, was rated as very good. LQNS seems to have an anti-allergic effect in patients with GPA. Copyright © 2016 John Wiley & Sons, Ltd.
Center for Complementary Medicine, University Medical Center Freiburg, Germany.
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A
Hoffmann
Institute of Complementary Medicine, University of Bern, Switzerland.
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SD
Klein
Center for Complementary Medicine, University Medical Center Freiburg, Germany.
C
C
Gründemann
Center for Complementary Medicine, University Medical Center Freiburg, Germany.
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M
Garcia-Käufer
Institute of Complementary Medicine, University of Bern, Switzerland.
U
U
Wolf
Center for Complementary Medicine, University Medical Center Freiburg, Germany.
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R
Huber
D000281:Administration, Intranasal; D000328:Adult; D018926:Anti-Allergic Agents / Q000627:therapeutic use*; D002957:Citrus / Q000737:chemistry*; D018592:Cross-Over Studies; D005260:Female; D006801:Humans; D008297:Male; D059085:Nasal Sprays; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*; D027824:Rosaceae / Q000737:chemistry*; D055815:Young Adult
D018926:Anti-Allergic Agents; D059085:Nasal Sprays
allergy; anthroposophic medicine; grass pollen; lemon; quince