Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Patent medicine refers to medical compounds of questionable effectiveness sold under a variety of names and labels. The term patent medicine" is somewhat of a misnomer because, in most cases, although many of the products were trademarked, they were never patented (most avoided the patent process so as not to reveal products'' often hazardous and questionable ingredients). Perhaps the only "patent medicine" ever to be patented was Castoria. In ancient times, such medicine was called nostrum remedium ("our remedy" in Latin). The name patent medicine has become particularly associated with the sale of drug compounds in the nineteenth century under an array of colourful names and even more colourful claims. The promotion of patent medicines was one of the first major products highlighted by the advertising industry, and many advertising and sales techniques were pioneered by patent medicine promoters."
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