Single Convention on Narcotic Drugs
Encyclopedia
The Single Convention on Narcotic Drugs of 1961 is an international treaty
Treaty
A treaty is an express agreement under international law entered into by actors in international law, namely sovereign states and international organizations. A treaty may also be known as an agreement, protocol, covenant, convention or exchange of letters, among other terms...

 to prohibit production and supply of specific (nominally narcotic
Narcotic
The term narcotic originally referred medically to any psychoactive compound with any sleep-inducing properties. In the United States of America it has since become associated with opioids, commonly morphine and heroin and their derivatives, such as hydrocodone. The term is, today, imprecisely...

) drugs and of drugs with similar effects except under licence for specific purposes, such as medical treatment and research. As noted below, its major effects included updating the Paris Convention of 13 July 1931 to include the vast number of synthetic opioids invented in the intervening 30 years and a mechanism for more easily including new ones. From 1931 to 1961 most of the families of synthetic opioids had been developed, including drugs in whatever way related to methadone
Methadone
Methadone is a synthetic opioid, used medically as an analgesic and a maintenance anti-addictive for use in patients with opioid dependency. It was developed in Germany in 1937...

, pethidine
Pethidine
Pethidine or meperidine Pethidine (INN) or meperidine (USAN) Pethidine (INN) or meperidine (USAN) (commonly referred to as Demerol but also referred to as: isonipecaine; lidol; pethanol; piridosal; Algil; Alodan; Centralgin; Dispadol; Dolantin; Mialgin (in Indonesia); Petidin Dolargan (in Poland);...

, morphinans and dextromoramide
Dextromoramide
Dextromoramide is a powerful opioid analgesic approximately three times more potent than morphine but shorter acting. It is subject to drug prohibition regimes, both internationally through UN treaties, and by the criminal law of individual states...

 & related drugs; research on fentanyls and piritramide
Piritramide
Piritramide is a synthetic opioid analgesic with a potency 0.65 to 0.75 times that of morphine. A common starting dose is 15 mg IV, equivalent to 10 mg of morphine hydrochloride. Piritramide is commonly used for the treatment of postoperative pain...

 were also nearing fruition at this point.

Earlier treaties had only controlled opium
Opium
Opium is the dried latex obtained from the opium poppy . Opium contains up to 12% morphine, an alkaloid, which is frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine...

, coca
Coca
Coca, Erythroxylum coca, is a plant in the family Erythroxylaceae, native to western South America. The plant plays a significant role in many traditional Andean cultures...

, and derivatives such as morphine
Morphine
Morphine is a potent opiate analgesic medication and is considered to be the prototypical opioid. It was first isolated in 1804 by Friedrich Sertürner, first distributed by same in 1817, and first commercially sold by Merck in 1827, which at the time was a single small chemists' shop. It was more...

, heroin and cocaine
Cocaine
Cocaine is a crystalline tropane alkaloid that is obtained from the leaves of the coca plant. The name comes from "coca" in addition to the alkaloid suffix -ine, forming cocaine. It is a stimulant of the central nervous system, an appetite suppressant, and a topical anesthetic...

. The Single Convention, adopted in 1961, consolidated those treaties and broadened their scope to include cannabis
Cannabis
Cannabis is a genus of flowering plants that includes three putative species, Cannabis sativa, Cannabis indica, and Cannabis ruderalis. These three taxa are indigenous to Central Asia, and South Asia. Cannabis has long been used for fibre , for seed and seed oils, for medicinal purposes, and as a...

 and drugs whose effects are similar to those of the drugs specified. The Commission on Narcotic Drugs
Commission on Narcotic Drugs
The Commission on Narcotic Drugs is the central drug policy-making body within the United Nations system. Its predecessor, the Advisory Committee on the Traffic in Opium and Other Dangerous Drugs, was established by the first Assembly of the League of Nations on December 15, 1920...

 and the World Health Organization
World Health Organization
The World Health Organization is a specialized agency of the United Nations that acts as a coordinating authority on international public health. Established on 7 April 1948, with headquarters in Geneva, Switzerland, the agency inherited the mandate and resources of its predecessor, the Health...

 were empowered to add, remove, and transfer drugs among the treaty's four Schedules of controlled substances. The International Narcotics Control Board
International Narcotics Control Board
The International Narcotics Control Board is the independent and quasi-judicial control organ for the implementation of the United Nations drug conventions...

 was put in charge of administering controls on drug production, international trade, and dispensation. The United Nations Office on Drugs and Crime
United Nations Office on Drugs and Crime
The United Nations Office on Drugs and Crime is a United Nations agency that was established in 1997 as the Office for Drug Control and Crime Prevention by combining the United Nations International Drug Control Program and the Crime Prevention and Criminal Justice Division in the United Nations...

 (UNODC) was delegated the Board's day-to-day work of monitoring the situation in each country and working with national authorities to ensure compliance with the Single Convention. This treaty has since been supplemented by the Convention on Psychotropic Substances
Convention on Psychotropic Substances
The Convention on Psychotropic Substances of 1971 is a United Nations treaty designed to control psychoactive drugs such as amphetamines, barbiturates, benzodiazepines, and psychedelics signed at Vienna on February 21, 1971...

, which controls LSD, Ecstasy
Methylenedioxymethamphetamine
MDMA is an entactogenic drug of the phenethylamine and amphetamine class of drugs. In popular culture, MDMA has become widely known as "ecstasy" , usually referring to its street pill form, although this term may also include the presence of possible adulterants...

, and other psychoactive pharmaceuticals, and the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
The United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988 is one of three major drug control treaties currently in force. It provides additional legal mechanisms for enforcing the 1961 Single Convention on Narcotic Drugs and the 1971 Convention on...

, which strengthens provisions against money laundering
Money laundering
Money laundering is the process of disguising illegal sources of money so that it looks like it came from legal sources. The methods by which money may be laundered are varied and can range in sophistication. Many regulatory and governmental authorities quote estimates each year for the amount...

 and other drug-related offenses.

Influence on domestic legislation

Since the Single Convention is not self-executing, Parties must pass laws to carry out its provisions. The United Nations Office on Drugs and Crime
United Nations Office on Drugs and Crime
The United Nations Office on Drugs and Crime is a United Nations agency that was established in 1997 as the Office for Drug Control and Crime Prevention by combining the United Nations International Drug Control Program and the Crime Prevention and Criminal Justice Division in the United Nations...

 works with countries' legislatures to ensure compliance. As a result, most of the national drug statutes in the UNODC's legal library share a high degree of conformity with the Single Convention and its supplementary treaties, the 1971 Convention on Psychotropic Substances
Convention on Psychotropic Substances
The Convention on Psychotropic Substances of 1971 is a United Nations treaty designed to control psychoactive drugs such as amphetamines, barbiturates, benzodiazepines, and psychedelics signed at Vienna on February 21, 1971...

 and the 1988 United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
The United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988 is one of three major drug control treaties currently in force. It provides additional legal mechanisms for enforcing the 1961 Single Convention on Narcotic Drugs and the 1971 Convention on...

.

The Single Convention has been extremely influential in standardizing national drug control laws. In particular, the United States' Controlled Substances Act
Controlled Substances Act
The Controlled Substances Act was enacted into law by the Congress of the United States as Title II of the Comprehensive Drug Abuse Prevention and Control Act of 1970. The CSA is the federal U.S. drug policy under which the manufacture, importation, possession, use and distribution of certain...

 of 1970 and the United Kingdom's Misuse of Drugs Act 1971
Misuse of Drugs Act 1971
The Misuse of Drugs Act 1971 is an Act of Parliament which represents UK action in line with treaty commitments under the Single Convention on Narcotic Drugs, the Convention on Psychotropic Substances, and the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic...

 were designed to fulfill treaty obligations. Both Acts include analogous schemes of drug Scheduling, along with similar procedures for adding, removing, and transferring drugs among the Schedules. The Controlled Substances Act follows the Single Convention's lead in granting a public health authority a central role in drug Scheduling decisions. It also includes a provision mandating that federal authorities control all drugs of abuse at least as strictly as required by the Single Convention(21 U.S.C. § 811(d)).

As of January 2005, the Single Convention had 180 Parties.

History

The League of Nations
League of Nations
The League of Nations was an intergovernmental organization founded as a result of the Paris Peace Conference that ended the First World War. It was the first permanent international organization whose principal mission was to maintain world peace...

 adopted several drug control treaties prior to World War II specifying uniform controls on addictive drugs such as cocaine
Cocaine
Cocaine is a crystalline tropane alkaloid that is obtained from the leaves of the coca plant. The name comes from "coca" in addition to the alkaloid suffix -ine, forming cocaine. It is a stimulant of the central nervous system, an appetite suppressant, and a topical anesthetic...

, opium
Opium
Opium is the dried latex obtained from the opium poppy . Opium contains up to 12% morphine, an alkaloid, which is frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine...

, and its derivatives. However, the lists of substances to be controlled were fixed in the treaties' text; consequently, the conventions had to periodically be amended or superseded by new treaties in order to keep up with advances in chemistry. The cumbersome process of conference and state-by-state ratification could take decades.

A Canadian Senate
Canadian Senate
The Senate of Canada is a component of the Parliament of Canada, along with the House of Commons, and the monarch . The Senate consists of 105 members appointed by the governor general on the advice of the prime minister...

 committee report notes, "The work of consolidating the existing international drug control treaties into one instrument began in 1948, but it was 1961 before an acceptable third draft was ready." That year, the UN Economic and Social Council convened a plenipotentiary
Plenipotentiary
The word plenipotentiary has two meanings. As a noun, it refers to a person who has "full powers." In particular, the term commonly refers to a diplomat fully authorized to represent his government as a prerogative...

 conference of 73 nations for the adoption of a single convention on narcotic drugs. That meeting was known as the United Nations Conference on Narcotic Drugs. Canadian William B. McAllister, Q.C., notes that the participating states organized themselves into five distinct caucuses:
  • Organic states group: As producers of the organic raw materials for most of the global drug supply, these countries had been the traditional focus of international drug control efforts. They were open to socio-cultural drug use, having lived with it for centuries. While India
    India
    India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

    , Turkey, Pakistan
    Pakistan
    Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

     and Burma took the lead, the group also included the coca
    Coca
    Coca, Erythroxylum coca, is a plant in the family Erythroxylaceae, native to western South America. The plant plays a significant role in many traditional Andean cultures...

    -producing states of Indonesia
    Indonesia
    Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

     and the Andean region of South America, the opium
    Opium
    Opium is the dried latex obtained from the opium poppy . Opium contains up to 12% morphine, an alkaloid, which is frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine...

    - and cannabis
    Cannabis
    Cannabis is a genus of flowering plants that includes three putative species, Cannabis sativa, Cannabis indica, and Cannabis ruderalis. These three taxa are indigenous to Central Asia, and South Asia. Cannabis has long been used for fibre , for seed and seed oils, for medicinal purposes, and as a...

    -producing countries of South and Southeast Asia, and the cannabis-producing states in the Horn of Africa
    Horn of Africa
    The Horn of Africa is a peninsula in East Africa that juts hundreds of kilometers into the Arabian Sea and lies along the southern side of the Gulf of Aden. It is the easternmost projection of the African continent...

    . They favored weak controls because existing restrictions on production and export had directly affected large segments of their domestic population and industry. They supported national control efforts based on local conditions and were wary of strong international control bodies under the UN. Although essentially powerless to fight the prohibition
    Prohibition (drugs)
    The prohibition of drugs through sumptuary legislation or religious law is a common means of attempting to prevent drug use. Prohibition of drugs has existed at various levels of government or other authority from the Middle Ages to the present....

     philosophy directly, they effectively forced a compromise by working together to dilute the treaty language with exceptions, loopholes and deferrals. They also sought development aid to compensate for losses caused by strict controls.
  • Manufacturing states group: This group included primarily Western industrialized nations, the key players being the United States, the United Kingdom, Canada, Switzerland
    Switzerland
    Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

    , the Netherlands
    Netherlands
    The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

    , West Germany
    West Germany
    West Germany is the common English, but not official, name for the Federal Republic of Germany or FRG in the period between its creation in May 1949 to German reunification on 3 October 1990....

    , and Japan. Having no cultural affinity for organic drug use and being faced with the effects that drug abuse
    Drug abuse
    Substance abuse, also known as drug abuse, refers to a maladaptive pattern of use of a substance that is not considered dependent. The term "drug abuse" does not exclude dependency, but is otherwise used in a similar manner in nonmedical contexts...

     was having on their citizens, they advocated very stringent controls on the production of organic raw materials and on illicit trafficking. As the principal manufacturers of synthetic psychotropics, and backed by a determined industry lobby, they forcefully opposed undue restrictions on medical research or the production and distribution of manufactured drugs. They favored strong supranational control bodies as long as they continued to exercise de facto control over such bodies. According to W.B. McAllister's Drug Diplomacy in the Twentieth Century, their strategy was essentially to "shift as much of the regulatory burden as possible to the raw-material-producing states while retaining as much of their own freedom as possible."
  • Strict control group: These were essentially non-producing and non-manufacturing states with no direct economic stake in the drug trade. The key members were France, Sweden, Brazil
    Brazil
    Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

    , and the Republic of China
    Republic of China
    The Republic of China , commonly known as Taiwan , is a unitary sovereign state located in East Asia. Originally based in mainland China, the Republic of China currently governs the island of Taiwan , which forms over 99% of its current territory, as well as Penghu, Kinmen, Matsu and other minor...

    . Most of the states in this group were culturally opposed to drug use and suffered from abuse problems. They favored restricting drug use to medical and scientific purposes and were willing to sacrifice a degree of national sovereignty
    Sovereignty
    Sovereignty is the quality of having supreme, independent authority over a geographic area, such as a territory. It can be found in a power to rule and make law that rests on a political fact for which no purely legal explanation can be provided...

     to ensure the effectiveness of supranational control bodies. They were forced to moderate their demands in order to secure the widest possible agreement.
  • Weak control group: This group was led by the Soviet Union
    Soviet Union
    The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

     and often included its allies in Europe, Asia and Africa. They considered drug control a purely internal issue and adamantly opposed any intrusion on national sovereignty, such as independent inspections. With little interest in the drug trade and minimal domestic abuse problems, they refused to give any supranational body excessive power, especially over internal decision-making.
  • Neutral group: This was a diverse group including most of the African countries, Central America, sub-Andean South America, Luxembourg and the Vatican
    Vatican City
    Vatican City , or Vatican City State, in Italian officially Stato della Città del Vaticano , which translates literally as State of the City of the Vatican, is a landlocked sovereign city-state whose territory consists of a walled enclave within the city of Rome, Italy. It has an area of...

    . They had no strong interest in the issue apart from ensuring their own access to sufficient drug supplies. Some voted with political blocs, others were willing to trade votes, and others were truly neutral and could go either way on the control issue depending on the persuasive power of the arguments presented. In general, they supported compromise with a view to obtaining the broadest possible agreement.

These competing interests, after more than eight weeks of negotiations, finally produced a compromise treaty. Several controls were watered down; for instance, the proposed mandatory embargo
Embargo
An embargo is the partial or complete prohibition of commerce and trade with a particular country, in order to isolate it. Embargoes are considered strong diplomatic measures imposed in an effort, by the imposing country, to elicit a given national-interest result from the country on which it is...

es on nations failing to comply with the treaty became recommendatory. The 1953 New York Opium Protocol, which had not yet entered into force, limited opium production to seven countries; the Single Convention lifted that restriction, but instituted other regulations and put the International Narcotics Control Board
International Narcotics Control Board
The International Narcotics Control Board is the independent and quasi-judicial control organ for the implementation of the United Nations drug conventions...

 in charge of monitoring their enforcement. A compromise was also struck that allowed heroin and some other drugs classified as particularly dangerous to escape absolute prohibition.

The Single Convention created four Schedules of controlled substances and a process for adding new substances to the Schedules without amending the treaty. The Schedules were designed to have significantly stricter regulations than the two drug "Groups" established by predecessor treaties. For the first time, cannabis
Cannabis
Cannabis is a genus of flowering plants that includes three putative species, Cannabis sativa, Cannabis indica, and Cannabis ruderalis. These three taxa are indigenous to Central Asia, and South Asia. Cannabis has long been used for fibre , for seed and seed oils, for medicinal purposes, and as a...

 was added to the list of internationally controlled drugs. In fact, regulations on the cannabis plant – as well as the opium
Opium
Opium is the dried latex obtained from the opium poppy . Opium contains up to 12% morphine, an alkaloid, which is frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine...

 poppy
Poppy
A poppy is one of a group of a flowering plants in the poppy family, many of which are grown in gardens for their colorful flowers. Poppies are sometimes used for symbolic reasons, such as in remembrance of soldiers who have died during wartime....

, the coca
Coca
Coca, Erythroxylum coca, is a plant in the family Erythroxylaceae, native to western South America. The plant plays a significant role in many traditional Andean cultures...

 bush, poppy straw and cannabis leaves – were embedded in the text of the treaty, making it impossible to deregulate them through the normal Scheduling process. A 1962 issue of the Commission on Narcotic Drugs
Commission on Narcotic Drugs
The Commission on Narcotic Drugs is the central drug policy-making body within the United Nations system. Its predecessor, the Advisory Committee on the Traffic in Opium and Other Dangerous Drugs, was established by the first Assembly of the League of Nations on December 15, 1920...

' Bulletin on Narcotics
Bulletin on Narcotics
The Bulletin on Narcotics is a publication of the United Nations Office on Drugs and Crime. First published in 1949, the bulletin provides a great deal of insight into the legislative history of the drug control treaties of the 20th century, including the earlier treaties as well as:*The 1961...

proudly announced that "after a definite transitional period, all non-medical use of narcotic drugs, such as opium smoking, opium eating, consumption of cannabis (hashish, marijuana) and chewing of coca leaves, will be outlawed everywhere. This is a goal which workers in international narcotics control all over the world have striven to achieve for half a century."

An 3 August 1962 Economic and Social Council resolution ordered the issuance of the Commentary on the Single Convention on Narcotic Drugs. The legal commentary was created by the United Nations Secretary-General
United Nations Secretary-General
The Secretary-General of the United Nations is the head of the Secretariat of the United Nations, one of the principal organs of the United Nations. The Secretary-General also acts as the de facto spokesperson and leader of the United Nations....

's staff (specifically, Adolf Lande
Adolf Lande
Adolf Lande served for many years as secretary of the Permanent Central Narcotics Board and the Drug Supervisory Body and was the primary drafter of the Single Convention on Narcotic Drugs. He also wrote the Commentary of both the Single Convention and the Convention on Psychotropic Substances...

, former Secretary of the Permanent Central Narcotics Board and Drug Supervisory Body), operating under a mandate to give "an interpretation of the provisions of the Convention in the light of the relevant conference proceedings and other material." The Commentary contains the Single Convention's legislative history
Legislative history
Legislative history includes any of various materials generated in the course of creating legislation, such as committee reports, analysis by legislative counsel, committee hearings, floor debates, and histories of actions taken...

 and is an invaluable aid to interpreting the treaty.

The Single Convention entered into force on 13 December 1964, having met Article 41's requirement of 40 ratifications. As of 1 January 2005, 180 states
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

 were Parties to the treaty. Others, such as Cambodia
Cambodia
Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

, have committed to becoming Parties.

On 21 May 1971, the UN Economic and Social Council called a conference of plenipotentiaries to consider amendments to the Single Convention. The conference met at the United Nations Office at Geneva from 6 to 24 March 1972, producing the 1972 Protocol Amending the Single Convention on Narcotic Drugs
Protocol Amending the Single Convention on Narcotic Drugs
The 1972 Protocol Amending the Single Convention on Narcotic Drugs was a protocol that made several changes to the Single Convention on Narcotic Drugs...

. The amendments entered into force on 8 August 1975.

On 11 November 1990, mechanisms for enforcing the Single Convention were expanded significantly by the entry into force of the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances
The United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988 is one of three major drug control treaties currently in force. It provides additional legal mechanisms for enforcing the 1961 Single Convention on Narcotic Drugs and the 1971 Convention on...

, which had been signed at Vienna
Vienna
Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

 on 20 December 1988. The Preamble to this treaty acknowledges the inadequacy of the Single Convention's controls to stop "steadily increasing inroads into various social groups made by illicit traffic in narcotic drugs and psychotropic substances". The new treaty focuses on stopping organized crime
Organized crime
Organized crime or criminal organizations are transnational, national, or local groupings of highly centralized enterprises run by criminals for the purpose of engaging in illegal activity, most commonly for monetary profit. Some criminal organizations, such as terrorist organizations, are...

 by providing for international cooperation in apprehending and convicting gangsters and starving them of funds through forfeiture
Asset forfeiture
Asset forfeiture is confiscation, by the State, of assets which are either the alleged proceeds of crime or the alleged instrumentalities of crime, and more recently, alleged terrorism. Instrumentalities of crime are property that was allegedly used to facilitate crime, for example cars...

, asset freezing, and other methods. It also establishes a system for placing precursors to Scheduled drugs under international control. Some non-Parties to the Single Convention, such as Andorra
Andorra
Andorra , officially the Principality of Andorra , also called the Principality of the Valleys of Andorra, , is a small landlocked country in southwestern Europe, located in the eastern Pyrenees mountains and bordered by Spain and France. It is the sixth smallest nation in Europe having an area of...

, belong to this treaty and thus are still under the international drug control regime.

Medical and other drug uses

The Single Convention repeatedly affirms the importance of medical use of controlled substances. The Preamble notes that "the medical use of narcotic
Narcotic
The term narcotic originally referred medically to any psychoactive compound with any sleep-inducing properties. In the United States of America it has since become associated with opioids, commonly morphine and heroin and their derivatives, such as hydrocodone. The term is, today, imprecisely...

 drugs continues to be indispensable for the relief of pain and suffering and that adequate provision must be made to ensure the availability of narcotic drugs for such purposes". Articles 1, 2, 4, 9, 12, 19, and 49 contain provisions relating to "medical and scientific" use of controlled substances. In almost all cases, parties are permitted to allow dispensation and use of controlled substances under a prescription
Medical prescription
A prescription is a health-care program implemented by a physician or other medical practitioner in the form of instructions that govern the plan of care for an individual patient. Prescriptions may include orders to be performed by a patient, caretaker, nurse, pharmacist or other therapist....

, subject to record-keeping requirements and other restrictions.

The Single Convention unambiguously condemns drug addiction, however, stating that "addiction to narcotic drugs constitutes a serious evil for the individual and is fraught with social and economic danger to mankind". It takes a prohibitionist
Prohibition (drugs)
The prohibition of drugs through sumptuary legislation or religious law is a common means of attempting to prevent drug use. Prohibition of drugs has existed at various levels of government or other authority from the Middle Ages to the present....

 approach to the problem of drug addiction, attempting to stop all non-medical, non-scientific use of narcotic drugs. Article 4 requires nations to limit use and possession of drugs to medicinal and scientific purposes. Article 49 allows countries to phase out coca
Coca
Coca, Erythroxylum coca, is a plant in the family Erythroxylaceae, native to western South America. The plant plays a significant role in many traditional Andean cultures...

 leaf chewing, opium
Opium
Opium is the dried latex obtained from the opium poppy . Opium contains up to 12% morphine, an alkaloid, which is frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine...

smoking, and other traditional drug uses gradually, but provides that "the use of cannabis for other than medical and scientific purposes must be discontinued as soon as possible."

The discontinuation of these prohibited uses is intended to be achieved by cutting off supply. Rather than calling on nations to prosecute drug users, the treaty focuses on traffickers and producers. As of March 2005, 116 drugs were controlled under the Single Convention.
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