配方类型：	COSMETICS AND DRUGS
配方说明：	Anti-Infective-Analgesic Ear Drop
配方组成：	Benzocaine (50% w/v)/500 g Chlorobutanol (0.5% w/v)/50 g Tyrothricin (0.1% w/v)/10 g Polyethylene Glycol-400, q.s./10 liters
配制方法：	Triturate the tyrothricin in portions with small quantities of the polyethylene glycol-400. Add more polyethylene glycol-400 and heat to 50C. Dissolve with stirring the benzocaine and chlorobutanol. Bring up to volume with polyethylene glycol-400 and filter solution through kieselguhr.

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