is it legal?
The most influential document regarding the legality of psychoactive drugs is the Single Convention on Narcotic Drugs, an international treaty signed in 1961 as an Act of the United Nations.
Psychoactive drug
 However, in recent years, the most influential document regarding the legality of psychoactive drugs is the Single Convention on Narcotic Drugs, an international treaty signed in 1961 as an Act of the United Nations. Signed by 73 nations including the United States, the USSR, Pakistan, India, and the United Kingdom, the Single Convention on Narcotic Drugs established Schedules for the legality of each drug and laid out an international agreement to fight addiction to recreational drugs by combatting the sale, trafficking, and use of scheduled drugs. 
what takes over the function of photosynthesis in opuntia In the absence of leaves, enlarged stems carry out photosynthesis. what is a cactus? It is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. how did they evolve? Except for a relatively recent spread of "Rhipsalis baccifera" to parts of the Old World, cacti are plants of South America and mainly southern regions of North America. This suggests the family must have evolved after the ancient continent of Gondwana split into South America and Africa, which occurred during the Early Cretaceous. how do they reproduce? Cactus flowers are pollinated by insects, birds and bats. how are they classified? Botanists, such as Philip Miller in 1754, divided cacti into several genera, which, in 1789, Antoine Laurent de Jussieu placed in his newly created family Cactaceae. who is the former person mentioned? An English botanist of Scottish descent. and the latter? A French botanist. what was his heritage? The system of suprageneric nomenclature in botany is officially dated to 4 Aug 1789 with the publication of the Genera Plantarum (Gen. Pl.). where was he from? Paris what was his contribution to his field? He is notable as the first to publish a natural classification of flowering plants; much of his system remains in use today. what does the aforementioned plant feed on? UNANSWERABLE what are its uses? They are used for human food and as fodder for animals, usually after burning off their spines. In addition to their use as psychoactive agents, some cacti are employed in herbal medicine. what is the agent just mentioned above? A psychoactive drug, psychopharmaceutical, or psychotropic drug is a chemical substance that changes nervous system function. is it used as an anesthetic? General anesthetics are a class of psychoactive drug used on people to block physical pain and other sensations. can people get addicted to it? Yes, they are often associated with addiction or drug dependence. are they used in the armed forces? Yes, as non-lethal weapons.
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Psychoactive drug [SEP] Legality
Alcohol is regulated by state governments, but the federal National Minimum Drinking Age Act penalizes states for not following a national drinking age. Tobacco is also regulated by all fifty state governments. Most people accept such restrictions and prohibitions of certain drugs, especially the "hard" drugs, which are illegal in most countries. In the medical context, psychoactive drugs as a treatment for illness is widespread and generally accepted. Little controversy exists concerning over the counter psychoactive medications in antiemetics and antitussives. Psychoactive drugs are commonly prescribed to patients with psychiatric disorders. However, certain critics believe that certain prescription psychoactives, such as antidepressants and stimulants, are overprescribed and threaten patients' judgement and autonomy.