Patent medicine the patent medicines, some of their makers began replacing the opium tincture laudanum with acetanilide, a particularly toxic non-steroidal anti-inflammatory drug with analgesic as well as antipyretic properties that had been introduced into medical practice under the name "Antifebrin" by A. Cahn and P. Hepp in 1886. But this ingredient change probably killed more of the nostrum's users than the original narcotics did, since acetanilide not only caused an alarming cyanosis due to methemoglobinemia but was later discovered to cause liver and kidney damage. The occasional reports of acetanilide-induced cyanosis prompted the search for supposedly less toxic aniline derivatives, such
Unused drug any consumer and a different set of concerns. With large supplies of drugs, drug pollution and negative environmental impact of pharmaceuticals and personal care products becomes a concern. Also, drug recycling might be a possibility. People in the United States tend to store unused opioids if any remain unused after medical treatment. Keeping unused opioids is a dangerous because it they become a risk for misuse. Unused drug An unused drug or leftover drug is the medicine which remains after the consumer has quit using it. Individual patients may have leftover medicines at the end of their treatment. Health care