Horse Chestnut

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Horse Chestnut Side Effects, Interactions and Warnings



  • Horse chestnut may increase the risk of bleeding or potentiate the effects of warfarin therapy.
    - Am J Health Syst Pharm 2000 Jul 1;57(13):1221-7; quiz 1228-30 -- Potential interactions between alternative therapies and warfarin. -- Heck AM, DeWitt BA, Lukes AL. -- School of Pharmacy and Pharmacal Sciences, Purdue University, Indianapolis, IN, USA.

  • May cause contact dermititis.
    - Contact dermatitis to extract of horse chestnut (esculin). -- Comaish JS, et al. -- Contact Dermatitis. 1980 Jan;6(2):150-1.

  • May cause an allergic reaction if you have an allergy to pollen.
    - Allergy 1992 Aug;47(4 Pt 2):380-3 -- Horse chestnut (Aesculus hippocastanum) pollen: a frequent cause of allergic sensitization in urban children. -- Popp W, Horak F, Jager S, Reiser K, Wagner C, Zwick H.

  • May cause gastrointestinal distress or nausea.







last update: March 2014



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