A. Bronchial Asthma
A1. Hofmann D, Hecker M, et al. Efficacy of dry extract of ivy leaves in children with bronchial asthma--a review of randomized controlled trials. Phytomedicine. 2003 Mar;10(2-3):213-220.
B. Respiratory Disease
B1. Schmidt M, Thomsen M, et al. Suitability of ivy extract for the treatment of paediatric cough. Phytother Res. 2012 Dec;26(12):1942-1947.
B2. Lang C, Röttger-Lüer P, et al. A valuable option for the treatment of respiratory diseases: review on the clinical evidence of the ivy leaves dry extract EA 575®. Planta Med. 2015 Aug;81(12-13):968-974.
B3. Schaefer A, Kehr MS, et al. A randomized, controlled, double-blind, multi-center trial to evaluate the efficacy and safety of a liquid containing ivy leaves dry extract (EA 575®) vs. placebo in the treatment of adults with acute cough. Pharmazie. 2016;71(9):504-509.
C1. Jones JM, White IR, White JM, McFadden JP. Allergic contact dermatitis to English ivy (Hedera helix)--a case series. Contact Dermatitis. 2009 Mar;60(3):179-180.
C2. Gangemi S, Minciullo PL, et al. Contact dermatitis as an adverse reaction to some topically used European herbal medicinal products - part 2: Echinacea purpurea-Lavandula angustifolia. Contact Dermatitis. 2015 Apr;72(4):193-205.