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Neosporin (from ''neo'', (Greek) new + ''sporos'', (Greek) seed) is an antibiotic product marketed for the prevention of infections and speeding the healing of wounds. Concern exists that the use of Neosporin contributes to the emergence of antibiotic-resistant bacteria. In the US, the only large market for Neosporin, the ointment may promote the prevalence of MRSA bacteria, specifically the highly lethal ST8:USA300 strain. ==Components== The original ointment contains three different antibiotics: bacitracin, neomycin, and polymyxin B, in a relatively low-molecular-weight patented base of cocoa butter, cottonseed oil, sodium pyruvate, tocopheryl acetate, and petroleum jelly. The generic name for these products, regardless of the base, is "triple antibiotic ointment". In China, this product is called "complex polymyxin B ointment," which is manufactured by Zhejiang Reachall Pharmaceutical. The product was also marketed by the Upjohn Company under the name "Mycitracin", until 1997 when that name was acquired by Johnson & Johnson. Some people have allergic reactions to neomycin, so a "double antibiotic ointment" is sold that contains only bacitracin and polymyxin B, such as the cobrand Polysporin. A "Plus" variant of the ointment exists that adds the analgesic pramoxine, but uses the cheap, simple, long-lasting, but heavier petroleum jelly base common to many over-the-counter topicals. The latest version of this, a high-absorption cream, removes the bacitracin, which is unstable in such a base, but keeps the analgesic. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Neosporin」の詳細全文を読む スポンサード リンク
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