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If You Want Your Children to be Healthy & Strong Give Them Iron Bitters. Early advertisement for a popular cocaine-laced elixir, Iron Bitters. Iron Bitters was a patented medicine touted as a cure for malaria, indigestion, female infirmities, and was also advertised as a tonic for kids. Visual motif: Showing a woman and three children; she is pouring a dose of Iron Bitters. Patent medicines are compounds promoted and sold as medical cures that do not work as promoted. "Patent medicine" is a misnomer since in most cases, although products might be trademarked, they are not patented. 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.