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calamine
Calamine is either a mixture of zinc oxide (ZnO) with about 0.5% ferric oxide (Fe2O3) or a zinc carbonate compound. It is the main ingredient in calamine lotion and is used as an anti-pruritic (anti-itching agent) to treat conditions such as sunburn, rashes, poison ivy, poison oak, chickenpox, and insect bites and stings.〔
(【引用サイトリンク】url=http://www.netdoctor.co.uk/medicines/100002970.html )〕〔(Calamine )〕〔(The South African Medicines Formulary: ANTIPRURITICS AND TOPICAL ANAESTHETICS )〕〔
(The Good Housekeeping Book of Child Care )〕〔(MedlinePlus Medical Encyclopedia: Poison ivy - oak - sumac rash )〕〔(Medline Plus Medical Encyclopedia: Hives )〕 It is also used as a mild antiseptic to prevent infections that can be caused by scratching the affected area, and an astringent to dry weeping or oozing blisters and acne abscesses.〔(Soothing Remedies for Poison Ivy and Poison Oak )〕
==Medical uses==
In a 1992 press release, the U.S. Food and Drug Administration announced that no proof had been submitted showing calamine to be safe for use or effective in treating bug bites, stings, and rashes from poison ivy, poison oak, and poison sumac. The press release listed a total of 415 over the counter (OTC) drug ingredients which the FDA proposed banning for specific uses which were, as of yet, unproven.
In a September 2, 2008 document, the U.S. Food and Drug Administration recommended applying topical OTC skin protectants, such as calamine, to relieve the itch caused by poisonous plants such as poison ivy, poison oak, and poison sumac.〔(September 2, 2008 FDA Document )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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