Combination of | |
---|---|
Amobarbital | Barbiturate |
Dextroamphetamine | Stimulant |
Clinical data | |
Trade names | Dexamyl, Drinamyl |
Other names | Amylbarbitone/dextroamphetamine |
Routes of administration | By mouth |
Dexamyl (or Drinamyl in the UK) was the brand name of a combination drug composed of amobarbital (previously called amylbarbitone) and dextroamphetamine (Dexedrine) within the same pill. It was widely abused and is no longer manufactured. [1]
First introduced in 1950 by Smith, Kline & French (SKF), Dexamyl was marketed as an anorectic obesity medication as well as an anxiolytic and antidepressant medication that did not cause agitation. Racemic amphetamine had already been marketed over-the-counter (OTC) since 1933 as a nasal decongestant inhaler device sold under the brand name Benzedrine, and also as an oral tablet since 1938. Dexamyl utilized its enantiopure isomer of greater central nervous system (CNS) selectivity, dextroamphetamine, to elevate mood and suppress appetite, whereas the concomitant barbiturate was included to broadly counteract potential adverse effects from dextroamphetamine. Its name is a portmanteau of dextro- amphetamine and amyl- barbitone.[ citation needed ]
Dexamyl was discontinued in 1982 by SKF in favor of monoamine oxidase inhibitors (MAOIs) and tricyclic antidepressants (TCAs) which were recently developed and shared treatment indications with Dexamyl yet lacked the high dependence potential and abuse liability which characterized long-term Dexamyl usage.[ citation needed ]
British prime minister Anthony Eden was prescribed Dexamyl; he was using it to treat abdominal pain. It has been suggested that the drug impaired his judgment during the Suez Crisis. [2] The failure of his Suez policies led to his ousting while he was recovering in Jamaica.
In Britain during the early 1960s the drug was taken by "tired housewives", and was also abused by youths who took excessively large doses and nicknamed the triangular blue tablets "purple hearts" or "blues." [3] This became a celebrated part of the Mod subculture. Dexamyl is the recreational drug of choice for the main character of the film Quadrophenia , who eventually suffers from amphetamine psychosis. They were widely abused. [4]
Henry Grahn, a general practitioner from Philadelphia who also conducted a study on the usage and effects of Dexamyl among his patients would pronounce the effectiveness of the drug with the quote “This is a Dexamyl age, an age of unrest; probably no other period in history has been dominated by a mood of uncertainty and disquiet.”
The famous patient of Freuds, Sergei Pankejeff (also known as the Wolf-man) was supplied with these by Muriel Gardiner from the United States which he, himself, felt was the only method for treating his depressive episodes. [5]
In the late 1960s and early 1970s, Dexamyl spansules—a clear and green capsule containing green and white "beads"—became popular as a street-drug upper nicknamed "Christmas trees", a reference to its appearance. [6]
In his autobiography My Life of Absurdity, author Chester Himes writes of his use of Dexamyl in the mid-1950s. He also writes that he stopped taking the drug after his friend Vandi Haygood died from "steady doses of Dexamyl". [7]
Dr. George C. Nichopoulos was indicted in May 1980 for having improperly prescribed Dexamyl and phenmetrazine (Preludin) to the singer Jerry Lee Lewis, despite knowing he was addicted to them. [8]
Dr. Patrick A. Mazza, team physician for the Reading Phillies, said he prescribed Dexamyl, Eskatrol, Dexedrine, and Preludin for Steve Carlton, Larry Christenson, Tim McCarver, Pete Rose, Larry Bowa, and Greg Luzinski. The charges against Mazza were dropped after he contended that he had provided the prescriptions in good faith to the baseball players at their request. [9] The pill was writer Terry Southern's drug of choice for many years. [10]
Amphetamine is a central nervous system (CNS) stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD), narcolepsy, and obesity; it is also used to treat binge eating disorder in the form of its inactive prodrug lisdexamfetamine. Amphetamine was discovered as a chemical in 1887 by Lazăr Edeleanu, and then as a drug in the late 1920s. It exists as two enantiomers: levoamphetamine and dextroamphetamine. Amphetamine properly refers to a specific chemical, the racemic free base, which is equal parts of the two enantiomers in their pure amine forms. The term is frequently used informally to refer to any combination of the enantiomers, or to either of them alone. Historically, it has been used to treat nasal congestion and depression. Amphetamine is also used as an athletic performance enhancer and cognitive enhancer, and recreationally as an aphrodisiac and euphoriant. It is a prescription drug in many countries, and unauthorized possession and distribution of amphetamine are often tightly controlled due to the significant health risks associated with recreational use.
Hypnotic, or soporific drugs, commonly known as sleeping pills, are a class of psychoactive drugs whose primary function is to induce sleep and to treat insomnia (sleeplessness).
Psychopharmacology is the scientific study of the effects drugs have on mood, sensation, thinking, behavior, judgment and evaluation, and memory. It is distinguished from neuropsychopharmacology, which emphasizes the correlation between drug-induced changes in the functioning of cells in the nervous system and changes in consciousness and behavior.
A psychiatric or psychotropic medication is a psychoactive drug taken to exert an effect on the chemical makeup of the brain and nervous system. Thus, these medications are used to treat mental illnesses. These medications are typically made of synthetic chemical compounds and are usually prescribed in psychiatric settings, potentially involuntarily during commitment. Since the mid-20th century, such medications have been leading treatments for a broad range of mental disorders and have decreased the need for long-term hospitalization, thereby lowering the cost of mental health care. The recidivism or rehospitalization of the mentally ill is at a high rate in many countries, and the reasons for the relapses are under research.
Bupropion, formerly called amfebutamone, and sold under the brand name Wellbutrin among others, is an atypical antidepressant primarily used to treat major depressive disorder and to support smoking cessation. It is also popular as an add-on medication in the cases of "incomplete response" to the first-line selective serotonin reuptake inhibitor (SSRI) antidepressant. Bupropion has several features that distinguish it from other antidepressants: it does not usually cause sexual dysfunction, it is not associated with weight gain and sleepiness, and it is more effective than SSRIs at improving symptoms of hypersomnia and fatigue. Bupropion, particularly the immediate release formulation, carries a higher risk of seizure than many other antidepressants, hence caution is recommended in patients with a history of seizure disorder. The medication is taken by mouth.
Dextroamphetamine is a potent central nervous system (CNS) stimulant and enantiomer of amphetamine that is prescribed for the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is also used as an athletic performance and cognitive enhancer, and recreationally as an aphrodisiac and euphoriant. Dextroamphetamine is generally regarded as the prototypical stimulant.
Adderall and Mydayis are trade names for a combination drug containing four salts of amphetamine. The mixture is composed of equal parts racemic amphetamine and dextroamphetamine, which produces a (3:1) ratio between dextroamphetamine and levoamphetamine, the two enantiomers of amphetamine. Both enantiomers are stimulants, but differ enough to give Adderall an effects profile distinct from those of racemic amphetamine or dextroamphetamine, which are marketed as Evekeo and Dexedrine/Zenzedi, respectively. Adderall is used in the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is also used illicitly as an athletic performance enhancer, cognitive enhancer, appetite suppressant, and recreationally as a euphoriant. It is a central nervous system (CNS) stimulant of the phenethylamine class.
Dextropropoxyphene is an analgesic in the opioid category, patented in 1955 and manufactured by Eli Lilly and Company. It is an optical isomer of levopropoxyphene. It is intended to treat mild pain and also has antitussive and local anaesthetic effects. The drug has been taken off the market in Europe and the US due to concerns of fatal overdoses and heart arrhythmias. It is still available in Australia, albeit with restrictions after an application by its manufacturer to review its proposed banning. Its onset of analgesia is said to be 20–30 minutes and peak effects are seen about 1.5–2.0 hours after oral administration.
Pemoline, sold under the brand name Cylert among others, is a stimulant medication which has been used in the treatment of attention-deficit hyperactivity disorder (ADHD) and narcolepsy. It has been discontinued in most countries due to rare but serious problems with liver toxicity. The medication was taken by mouth.
Phenmetrazine is a stimulant drug first synthesized in 1952 and originally used as an appetite suppressant, but withdrawn from the market in the 1980s due to widespread abuse. It was initially replaced by its analogue phendimetrazine which functions as a prodrug to phenmetrazine, but now it is rarely prescribed, due to concerns of abuse and addiction. Chemically, phenmetrazine is a substituted amphetamine containing a morpholine ring.
Levmetamfetamine, also known as l-desoxyephedrine or levomethamphetamine, and commonly sold under the brand name Vicks VapoInhaler among others, is an optical isomer of methamphetamine primarily used as a topical nasal decongestant. It is used to treat nasal congestion from allergies and the common cold. It was first used medically as decongestant beginning in 1958 and has been used for such purposes, primarily in the United States, since then.
A combination drug or a fixed-dose combination (FDC) is a medicine that includes two or more active ingredients combined in a single dosage form. Terms like "combination drug" or "combination drug product" can be common shorthand for an FDC product, although the latter is more precise if in fact referring to a mass-produced product having a predetermined combination of drugs and respective dosages. And it should also be distinguished from the term "combination product" in medical contexts, which without further specification can refer to products that combine different types of medical products—such as device/drug combinations as opposed to drug/drug combinations. When a combination drug product is a "pill", then it may also be a kind of "polypill" or combopill.
Lisdexamfetamine, sold under the brand names Vyvanse and Elvanse among others, is a stimulant medication that is used to treat attention deficit hyperactivity disorder (ADHD) in children and adults and for moderate-to-severe binge eating disorder in adults. Lisdexamfetamine is taken by mouth. Its effects generally begin within two hours and last for up to 14 hours.
Obetrol was the brand name of a drug combining several amphetamine salts indicated for the treatment of exogenous obesity. It was originally sold by the American company Obetrol Pharmaceuticals. Obetrol was a popular diet pill in America in the 1950s and 1960s.
Eskatrol was an amphetamine weight loss agent which was removed by the U.S. Food and Drug Administration (FDA) in 1981 after its manufacturer, SmithKline & French (SKF), failed to prove the therapeutic effectiveness (Emax) of the medication. At the time it was among the 200 most widely prescribed drugs in the United States. Others included Dexamyl and Desbutal pills. Eskatrol contained dextroamphetamine sulfate (Dexedrine) and prochlorperazine (Compazine), a typical antipsychotic.
Levoamphetamine is a stimulant medication which is used in the treatment of certain medical conditions. It was previously marketed by itself under the brand name Cydril, but is now available only in combination with dextroamphetamine in varying ratios under brand names like Adderall and Evekeo. The drug is known to increase wakefulness and concentration in association with decreased appetite and fatigue. Pharmaceuticals that contain levoamphetamine are currently indicated and prescribed for the treatment of attention deficit hyperactivity disorder (ADHD), obesity, and narcolepsy in some countries. Levoamphetamine is taken by mouth.
Desbutal was a brand name drug by Abbott containing 5 mg methamphetamine hydrochloride (Desoxyn) and 30 mg pentobarbital sodium (Nembutal); a substituted amphetamine and a barbiturate combined within the same pill. Desbutal was marketed as an antidepressant as well as a medication for the treatment of obesity, narcolepsy, parkinsonism, and alcoholism, although it was commonly also prescribed off-label for miscellaneous ailments. It had a high abuse potential and is no longer manufactured.
Gordon A. Alles, was an American chemist and pharmacologist who did extensive research on the isolation and properties of insulin for the treatment of diabetics. He is also credited with discovering and publishing the physiological effects of amphetamine and methylenedioxyamphetamine (MDA). He is the first person to have prepared amphetamine sulfate, although not the amphetamine molecule. Alles first reported the physiological properties of amphetamine as a synthetic analog of ephedrine, and therefore received credit for this discovery. He enjoyed large royalties from Smith, Kline & French (SKF) because he sold his patent rights for amphetamine to the company and it enjoyed large sales. Several popular products sold by SKF contained amphetamine, including Benzedrine pills and inhalers, Dexedrine pills and Dexamyl tablets. Counterfeit drugs such as Profetamine appeared, aiming to circumvent Alles' 'weak' patent.
Amphetamine type stimulants (ATS) are a group of synthetic drugs that are chemical derivatives of the parent compound alpha-methylphenethylamine, also known as amphetamine. Common ATS includes amphetamine, methamphetamine, ephedrine, pseudoephedrine, 3,4-methylenedioxymethamphetamine (MDMA), 3,4-methylenedioxyamphetamine (MDA) and 3,4-methylenedioxyethylamphetamine (MDEA). ATS when used illicitly has street names including ice, meth, crystal, crank, bennies, and speed. Within the group of amphetamine-type stimulants, there are also prescription drugs including mixed amphetamine salts, dextroamphetamine, and lisdexamfetamine.