Felis ISSN 2398-2950

Hamamelis extract

Synonym(s): Witch hazel, winter bloom, snapping hazel, striped alder, spotted alder, tobacco wood

Contributor(s): Yolande Bishop

Introduction

Name

  • Hamamelis extract (main constituent is Hamamelitannin).

Class of drug

  • Astringent.

Description

Chemical name

  • Hamamelitannin.
  • 2-C-[[3,4,5-(Trihydroxybenzoyl)oxy]methyl]-D-ribofuranose 5-(3,4,5-trihydroxy)benzoate.
  • 2-C-(hydroxymethyl)-D-ribofuranose 2',5-digallate.

Molecular formula

  • C20 H20 O14.

Molecular weight

  • 484.37.

Physical properties

  • Melting point: 145-147°F.
  • Soluble in acetone, dioxane and methanol.
  • Practically insoluble in water.

Uses

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Indications

  • Pruritic skin conditions with skin surface intact.

Administration

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Further Reading

Publications

Refereed papers

  • Curtis C (1998)Use and abuse of topical dermatological therapy in dogs and cats. Part 1. Shampoo therapy.In Pract20(5) 244-251.

Other sources of information

  • Tennant B (1999)Small Animal Formulary.3rd edn. British Small Animal Veterinary Association. ISBN 0 905214 52 8.

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