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Drugs and Chemicals /
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Witch Hazel
(Hamamelis) |
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Antiseptic Effect of a Topical Dermatological Formulation That Contains Hamamelis Distillate and Urea Formulations of Hamamelis distillate and urea are mainly used for their antiinflammatory, hydrating, and barrier-stabilizing effects in dermatitis maintenance therapy. As bacterial colonization has a central role in the pathogenesis of atopic dermatitis and intertrigo, the antimicrobial activity of such products is considered a welcome, added benefit Read More Herbal medicine: from the past to the future The Food and Drug Administration (FDA) had long insisted that to obtain approval as a drug in this country, herbs had to be supported by the same amount of costly evidence of efficacy required for new synthetic drugs. Because of lack of patentability of the long-known herbs and consequent lack of market exclusivity, companies were unwilling to make the substantial investment required to prove their efficacy. Consequently, only a handful of herbs, many of them quite insignificant from the therapeutic viewpoint – witch hazel (Hamamelis virginiana L.) water, for example – have ever received drug approval in the USA. Read More Over the counter ophthalmic preparations Preparations containing the astringents distilled witch hazel and zinc sulphate are indicated for the relief of minor eye irritations. Astringents are locally acting drugs that precipitate proteins. These preparations are so poorly penetrative that only the cell surface is affected, resulting in greatly reduced cell permeability and thus watering. Read More Anti-Inflammatory Effect of Hamamelis Lotion in a UVB Erythema Test Although Hamamelis virginiana has long been used in the traditional treatment of skin diseases, there are few controlled clinical studies defining the extent of its anti-inflammatory action. Read More |
| Book Reviews | 05 Jul 2008 |
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