Laudanum Laudanum Laudanum is a tincture of opium containing approximately 10% powdered opium by weight (the equivalent of 1% morphine). Reddish-brown and extremely bitter, laudanum contains almost all of the opium alkaloids, including morphine and codeine. Laudanum was historically used to treat a variety of conditions, but its principal use was as a pain medication and cough suppressant. Until the early 20th century, laudanum was sold without a prescription and was a constituent of many patent medicines. Today, laudanum is recognized as addictive and is strictly regulated and controlled as such throughout most of the world. The United States Uniform Controlled
Drug interaction special interest to the practice of medicine are primarily those that have negative effects for an organism. The risk that a pharmacological interaction will appear increases as a function of the number of drugs administered to a patient at the same time. Over a third (36%) of older adults in the U.S. regularly use 5 or more medications or supplements and 15% are potentially at risk for a major drug-drug interaction. Both the use of medications and subsequent adverse drug interactions have increased significantly between 2005-2011. It is possible that an interaction will occur between a drug and another substance