Laudanum Substances Act, for one example, lists it on Schedule II. Laudanum is known as a "whole opium" preparation since it historically contained all the opium alkaloids. Today, however, the drug is often processed to remove all or most of the noscapine (also called "narcotine") present as this is a strong emetic and does not add appreciably to the analgesic or anti-propulsive properties of opium; the resulting solution is called Denarcotized Tincture of Opium or Deodorized Tincture of Opium (DTO). Laudanum remains available by prescription in the United States and theoretically in the United Kingdom, although today the drug's therapeutic indications
Desensitization (medicine) include: Desensitization (medicine) In medicine, desensitization is a method to reduce or eliminate an organism's negative reaction to a substance or stimulus. In pharmacology, "drug desensitization" is equivalent to drug tolerance, though the latter term refers to the more general concept of subjects' reactions (positive or negative) to a drug reducing following its repeated use. For example, if a person with diabetes mellitus has a bad allergic reaction to taking a full dose of beef insulin, the person is given a very small amount of the insulin at first, so small that the person has no adverse reaction or very