Showing posts with label drugs. Show all posts
Showing posts with label drugs. Show all posts

Tuesday, July 3, 2007

LYSERGIC ACID DIETHYLAMIDE (LSD)

LSD is an hallucinogenic substance produced from lysergic acid, a substance derived from the ergot fungus (Clavica purpurea) which grows on rye. It can also be derived from lysergic acid amide which is found in morning glory seeds.1 LSD is also refered to as LSD-25 because it was the twenty-fifth in a series of compounds produced by Dr. Albert Hofmann in Basel, Switzerland.

Hoffman was interested in the chemistry of ergot compounds, especially their effect on circulation. He was trying to produce compounds that might improve circulation without exhibiting the other toxic effects associated with ergot poisoning. One of the products he produced was Methergine™, which is still in use today.

When LSD-25 was first tested on animals, in 1938, the results were disappointing. Five years later, in 1943, Hoffman decided to reevaluate LSD-25. The hallucinogenic experience that ensued when he accidentally ingested some of the compound led to the start of experimentation with “psychedelic” drugs.

LSD is the most potent hallucinogenic substance known to man. Dosages of LSD are
measured in micrograms (one microgram equals one-one millionth of a gram). By comparison, dosage units of cocaine and heroin are measured in milligrams (one milligram equals one-one thousanth of a gram). LSD is available in the form of very small tablets (“microdots”), thin squares of gelatin (“window panes”), or impregnated on blotter paper (“blotter acid”).

The most popular of these forms in the 1990s is blotter paper perforated into 1/4 inch squares. This paper is usually brightly colored with psychedelic designs or line drawing. There have been recent reports of LSD impregnated on sugar cubes.2 These LSD-laced sugar cubes were commonplace in the 1970s. The precursor to LSD, Lysergic Acid, is a Schedule III controlled substance. LSD is classified as a Schedule I controlled substance.

Sunday, May 20, 2007

Some Controlled Substances - Heroin

Whenever one thinks about drugs of abuse and addiction, heroin is one of the most recognized drugs. Heroin is a synthetic drug, produced from the morphine contained in the sap of the opium poppy. The abuse of this particular controlled substance has been known for many years. The correct chemical nomenclature for heroin is O3, O6 -diacetylmorphine.

Heroin is synthesized from morphine in a relatively simple process. The first synthesis of diacetylmorphine reported in the literature was in 1875 by two English chemists, G.H. Beckett and C.P. Alder Wright. 1 In 1898 in Eberfield, Germany, the Farbenfarbriken vorm Friedrich Bayer and Company produced the drug commercially. An employee of the company, H. Dresser, named the morphine product “Heroin”.2 There is no definitive documentation as to where the name “heroin” originated. However, it probably had its origin in the “heroic remedies” class of drugs of the day.

Heroin was used in place of codeine and morphine for patients suffering from lung diseases such as tuberculosis. Additionally, the Bayer Company advertised heroin as a cure for morphine addiction. The analgesic properties of the drug were very effective. However, the addictive properties were quite devastating.

In 1924, Congress amended the Narcotic Drug Import and Export Act to prohibit the importation of opium for the manufacture of heroin. However, stockpiles were still available and could be legally prescribed by physicians. The 1925 International Opium Convention imposed drug controls that began to limit the supply of heroin from Europe. Shortly thereafter, the clandestine manufacture of heroin was reported in China.

The supplies of opium in the Far East provided a ready source of morphine—the starting material for the synthesis. The medical use of heroin in the U.S. was not banned until July 19, 1956 with the passage of Public Law 728, which required all inventories to be surrendered to the federal government by November 19, 1956.