See separate articles for over-the-counter trading and the medical condition Ornithine Transcarbamylase Deficiency. Over-the-counter trading is the trading of financial instruments such as stocks directly between parties and not through an exchange. ... Ornithine transcarbamylase deficiency (OTC), the most common of the Urea Cycle Disorders, is a rare metabolic disorder, occurring in one out of every 40000 births. ...

Over-the-counter drugs (OTC) or other medical remedies may be sold without a prescription and without a visit to a medical professional. One of the oldest OTC drugs is aspirin. Sometimes some OTC drugs are further restricted to require prescriptions. Cocaine and various opiates, for instance, were once sold freely OTC, but now are highly restricted. On the other hand, diphenhydramine hydrochloride (Benadryl, for instance) once required a prescription, but now is available OTC. As a general rule, over-the-counter drugs have to be primarily used to treat a condition that does not require the direct supervision of a doctor, and must be proven to be reasonably safe and well-tolerated with little abuse potential, though some drugs such as dextromethorphan and (in some jurisdiction) codeine skirt the edges of the latter requirement. It is somewhat unusual for an OTC drug to be withdrawn from the market, though it has happened (phenylpropanolamine being one good example). A drug is any substance that can be used to modify a chemical process or processes in the body, for example to treat an illness, relieve a symptom, enhance a performance or ability, or to alter states of mind. ... See drugs, medication, and pharmacology for substances that are used to treat patients. ... A medical prescription (â„ž) is a written order by a medical doctor to a pharmacist for a treatment to be provided to the doctors patient. ... A very old bottle of Aspirin Aspirin or acetylsalicylic acid is a drug in the family of salicylates, often used as an analgesic (against minor pains and aches), antipyretic (against fever), and anti-inflammatory. ... Cocaine is a crystalline tropane alkaloid that is obtained from the leaves of the coca plant. ... The term opiate refers to the alkaloids found in opium, an extract from the unripe seeds of the opium poppy (). It has also traditionally referred to natural and semi-synthetic derivatives of morphine. ... Diphenhydramine hydrochloride (trade name Benadryl®, or Dimedrol outside the US) is an over-the-counter (OTC) antihistamine and sedative. ... Dextromethorphan (DM or DXM) is an antitussive drug that is found in many over-the-counter cold remedies and cough syrups. ... Codeine (INN) is an opioid used for its analgesic, antitussive and antidiarrhoeal properties. ... Phenylpropanolamine (PPA) is a drug of the phenethylamine family used in bronchial and nasal decongestants, and also as an appetite suppressant. ...

The name "over-the-counter" is somewhat confusing, since most OTC drugs are found on the shelves of stores and bought like any other packaged product.

Other over-the-counter drugs are sold, but not marketed as drugs. Morning glory seeds are sold for their gardening purposes, but can be used recreationally as a hallucinogenic drug due to the LSA it contains. Nutmeg has also been used to some extent as a hallucinogenic drug, but is considered undesirable to most recreational drug users. Ipomoea indica in Baja California Morning glory is one of several climbing plants of the following species, all belonging to the Convolvulaceae: Calystegia stebbinsii (Stebbins morning glory) Convolvulus althaeoides Ipomoea arborescens (tree morning glory) Ipomoea purpurea (common morning glory or field bindweed) Ipomoea violacea (tlitliltzin) Naturally occurring in the United... Gardening is an activity—the art and craft of growing plants—with a goal of creating a beautiful environment. ... Hallucinogenic drugs or hallucinogens are drugs that can alter sensory perceptions, elicit alternate states of consciousness, or cause hallucinations. ... A drug is any substance that can be used to modify a chemical process or processes in the body, for example to treat an illness, relieve a symptom, enhance a performance or ability, or to alter states of mind. ... LSA is an acronym standing for: Linguistic Society of America d-Lysergic acid amide Latent semantic analysis Lichen sclerosus et atrophicus (Rare skin disease) Link-state advertisement This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Species About 100 species, including: Myristica argentea Myristica fragrans Myristica malabarica The nutmegs Myristica are a genus of evergreen trees indigenous to tropical southeast Asia and Australasia. ... Hallucinogenic drugs or hallucinogens are drugs that can alter sensory perceptions, elicit alternate states of consciousness, or cause hallucinations. ... A drug is any substance that can be used to modify a chemical process or processes in the body, for example to treat an illness, relieve a symptom, enhance a performance or ability, or to alter states of mind. ...

Chemicals

Over-the-counter chemicals may be sold without much suspicion. Many chemicals are becoming harder to get due to regulations designed to thwart underground drug and explosives laboratories. Underground chemists have become exceedingly efficient in extracting essential chemicals from very ordinary items, and using very ordinary items to yield illicit chemicals: A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ... Underground as an adjective commonly refers to something that is either below the ground or outside of public consciousness. ... A drug is any substance that can be used to modify a chemical process or processes in the body, for example to treat an illness, relieve a symptom, enhance a performance or ability, or to alter states of mind. ... This article is concerned solely with chemical explosives. ... Organized crime is crime carried out systematically by formal criminal organizations. ... A chemist is a scientist who specializes in chemistry. ...

• Ephedrine from cough medicine for methamphetamine or methcathinone
• Potassium permanganate (a filter treatment and water conditioning agent) for methcathinone
• piperidine from pepper for PCP
• safrole from sassafras oil for MDMA
• myristicin from nutmeg oil for MMDA
• benzaldehyde from bitter almond oil for amphetamines
• cinnamaldehyde from cinnamon for allybenzene for phenylacetone for methamphetamine
• Sulfuric acid from Drain Cleaner or Car Batteries

• Acetone and Hydrogen peroxide for Acetone peroxide
• Glycerin and Nitric acid for Nitroglycerin

Ephedrine (EPH) is a sympathomimetic amine commonly used as a decongestant. ... A cough medicine or antitussive is a medication given to people to help them stop coughing. ... Methamphetamine is a synthetic stimulant drug which induces a strong feeling of euphoria and is highly psychologically addictive. ... Methcathinone is an addictive recreational drug that is cheap and simple to synthesize. ... Potassium permanganate Potassium permanganate (KMnO4) is an inorganic chemical compound composed of potassium (K+) and permanganate (MnO4-) ions. ... Methcathinone is an addictive recreational drug that is cheap and simple to synthesize. ... Piperidine is a cyclic amine. ... Look up Pepper in Wiktionary, the free dictionary Charleston Hot peppers in varying stages of maturity. ... Pneumocystis carinii pneumonia, disease phencyclidine, a drug also known as Angel Dust Probabilistically checkable proof, a notion in the theory of computational complexity theory Partido Comunista del Peru, a. ... External links Safrole FAQ EU Narcotic drugs and psychotropic substances: internal aspects IARC Safrole, Isosafrole and dihydrosafrole Categories: Chemistry stubs ... Species Sassafras albidum Sassafras randaiense Sassafras tzumu Sassafras is a genus of three species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia. ... ecstasy and religious ecstasy MDMA, most commonly known today by the street name ecstasy, is a synthetic entactogen of the phenethylamine family whose primary effect is to stimulate the brain to rapidly secrete large amounts of serotonin, causing a general sense of openness, empathy, energy, euphoria, and well-being. ... Myristicin is a chemical present in nutmeg. ... Species About 100 species, including: Myristica argentea Myristica fragrans Myristica malabarica The nutmegs Myristica are a genus of evergreen trees indigenous to tropical southeast Asia and Australasia. ... The chemical compound benzaldehyde (C6H5CHO) consists of a benzene ring with an aldehyde group attached to one carbon. ... Binomial name Prunus dulcis (Mill. ... Amphetamine, also known as speed, is a synthetic drug originally studied (and still used) as an appetite suppressant. ... Cinnamic aldehyde or cinnamaldehyde (more precisely trans-cinnamaldehyde, the only naturally-occurring form) is the chemical compound that gives cinnamon its spice. ... Binomial name Cinnamomum zeylanicum Blume Cinnamon (Cinnamomum zeylanicum, synonym ) is a small evergreen tree 10-15 m tall, belonging to the family Lauraceae, and a spice obtained from the inner bark of this species. ... Methamphetamine is a synthetic stimulant drug which induces a strong feeling of euphoria and is highly psychologically addictive. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ... Four double-A batteries In science and technology, a battery is a device that stores energy and makes it available in an electrical form. ... In chemistry, acetone (also known as propanone, dimethyl ketone, 2-propanone, propan-2-one and beta-ketopropane) is the simplest representative of the ketones. ... Hydrogen peroxide (H2O2) is a clear liquid, a little more viscous than water, that has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant and (in high concentrations as high test peroxide) as an oxidizer or monopropellant in rockets. ... Acetone peroxide (peroxyacetone, TATP, or Mother of Satan because of its instability and power) is an organic peroxide. ... Glycerin, also known as glycerine and glycerol, and less commonly as 1,2,3-propanetriol, 1,2,3-trihydroxypropane, glyceritol, and glycyl alcohol is a colorless, odorless, hygroscopic, and sweet tasting viscous liquid. ... The chemical compound nitric acid (HNO3), otherwise known as aqua fortis, is a colorless, corrosive liquid, a toxic acid which can cause severe burns. ... Nitroglycerin, also known as nitroglycerine, trinitroglycerin, and glyceryl trinitrate, is a chemical compound, a heavy, colorless, poisonous, oily, explosive liquid obtained by nitrating glycerol. ...

Other uses

"Over the counter" can also be used as a way of describing public stock sales that do not go through recognized exchanges such as the NYSE or NASDAQ. Generally, however, OTC stocks are those of fringe companies with narrow or limited investment potential, and are often derided as penny stocks. A stock market is a market for the trading of publicly held company stock and associated financial instruments (including stock options, convertibles and stock index futures). ... New York Stock Exchange (June 2003) The New York Stock Exchange (NYSE) is the second largest stock exchange in the world. ... NASDAQ MarketSite (Times Square, New York City) at night NASDAQ (originally an acronym for National Association of Securities Dealers Automated Quotations) is an American electronic stock exchange. ... Stocks with market price below 1 unit of the local currency are called penny stocks. ...

See also

• dextromethorphan