Amfepramone

Last updated

Amfepramone
Amfepramone.svg
Clinical data
Trade names Tenuate, Tepanil, Nobesine, others
Other namesDiethylpropion, Diethylcathinone
AHFS/Drugs.com Monograph
MedlinePlus a682037
License data
Pregnancy
category
  • AU:B2
Routes of
administration
By mouth
ATC code
Legal status
Legal status
Pharmacokinetic data
Elimination half-life 46 hours (metabolites) [7]
Excretion Urine (>75%) [7]
Identifiers
  • (RS)-2-diethylamino-1-phenylpropan-1-one
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard 100.001.836 OOjs UI icon edit-ltr-progressive.svg
Chemical and physical data
Formula C13H19NO
Molar mass 205.301 g·mol−1
3D model (JSmol)
Chirality Racemic mixture
  • O=C(c1ccccc1)C(N(CC)CC)C
  • InChI=1S/C13H19NO/c1-4-14(5-2)11(3)13(15)12-9-7-6-8-10-12/h6-11H,4-5H2,1-3H3 Yes check.svgY
  • Key:XXEPPPIWZFICOJ-UHFFFAOYSA-N Yes check.svgY
 X mark.svgNYes check.svgY  (what is this?)    (verify)

Amfepramone, also known as diethylpropion, is a stimulant drug of the phenethylamine, amphetamine, and cathinone classes that is used as an appetite suppressant. [8] [9] It is used in the short-term management of obesity, along with dietary and lifestyle changes. [8] Amfepramone has a similar chemical structure to the antidepressant and smoking cessation aid bupropion (previously called amfebutamone), which has also been developed as a weight-loss medicine when in a combination product with naltrexone. [10]

Contents

Pharmacology

Amfepramone itself lacks any affinity for the monoamine transporters and instead functions as a prodrug to ethcathinone. [11] Ethcathinone (and therefore amfepramone as well) is a very weak dopaminergic and serotonergic, and is approximately 10× and 20× stronger on norepinephrine in comparison, respectively. [11]

Chemistry

Amfepramone can be synthesized from propiophenone by bromination, followed by reaction with diethylamine. [12] [13]

Society and culture

Names

Another medically utilized name is diethylpropion (British Approved Name (BAN) and Australian Approved Name (AAN)). Chemical names include: α-methyl-β-keto-N,N-diethylphenethylamine, N,N-diethyl-β-ketoamphetamine and N,N-diethylcathinone. Brand names include: Anorex, Linea, Nobesine, Prefamone, Regenon, Tepanil and Tenuate.

Amfepramone is classified as a Schedule IV controlled substance in the United States. In the UK amfepramone is a class C drug [14] and as a medicine, it is a Schedule 3 Controlled Drug which requires safe custody.

As of June 2022, the safety committee of the European Medicines Agency (EMA) recommends the withdrawal of marketing authorizations for amfepramone. [15] [6]

Recreational use

The authors of several studies of amfepramone claim that the substance has a relatively low potential for causing addiction in users. [16] [17] [4] [18]

Related Research Articles

<span class="mw-page-title-main">Ephedrine</span> Medication and stimulant

Ephedrine is a central nervous system (CNS) stimulant that is often used to prevent low blood pressure during anesthesia. It has also been used for asthma, narcolepsy, and obesity but is not the preferred treatment. It is of unclear benefit in nasal congestion. It can be taken by mouth or by injection into a muscle, vein, or just under the skin. Onset with intravenous use is fast, while injection into a muscle can take 20 minutes, and by mouth can take an hour for effect. When given by injection it lasts about an hour and when taken by mouth it can last up to four hours.

<span class="mw-page-title-main">Methylphenidate</span> Central nervous system stimulant

Methylphenidate, sold under the brand names Ritalin and Concerta among others, is a central nervous system (CNS) stimulant used medically to treat attention deficit hyperactivity disorder (ADHD) and, to a lesser extent, narcolepsy. It is a primary medication for ADHD ; it may be taken by mouth or applied to the skin, and different formulations have varying durations of effect, commonly ranging from 2–4 hours. For ADHD, the effectiveness of methylphenidate is comparable to atomoxetine but modestly lower than amphetamines.

<span class="mw-page-title-main">Bupropion</span> Substituted cathinone medication mainly used for depression and smoking cessation

Bupropion, 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.

An anorectic or anorexic is a drug which reduces appetite, resulting in lower food consumption, leading to weight loss. These substances work by affecting the central nervous system or certain neurotransmitters to create a feeling of fullness or reduce the desire to eat. The understanding of anorexiant effects is crucial in the development of interventions for weight management, eating disorders, and related health concerns. The anorexiant effect can be induced through diverse mechanisms, ranging from hormonal regulation to neural signaling. Ghrelin, leptin, and peptide YY are among the hormones involved in appetite control. Additionally, neurotransmitters such as serotonin and dopamine in the central nervous system contribute significantly to the regulation of food intake.

<span class="mw-page-title-main">Dextropropoxyphene</span> Withdrawn opioid medication

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.

<span class="mw-page-title-main">Phenmetrazine</span> Chemical compound

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.

Pegfilgrastim, sold under the brand name Neulasta among others, is a PEGylated form of the recombinant human granulocyte colony-stimulating factor (GCSF) analog filgrastim. It serves to stimulate the production of white blood cells (neutrophils). Pegfilgrastim was developed by Amgen.

<span class="mw-page-title-main">Triethylenetetramine</span> Chemical compound

Triethylenetetramine (TETA and trien), also known as trientine (INN) when used medically, is an organic compound with the formula [CH2NHCH2CH2NH2]2. The pure freebase is a colorless oily liquid, but, like many amines, older samples assume a yellowish color due to impurities resulting from air-oxidation. It is soluble in polar solvents. The branched isomer tris(2-aminoethyl)amine and piperazine derivatives may also be present in commercial samples of TETA. The hydrochloride salts are used medically as a treatment for copper toxicity.

<span class="mw-page-title-main">Pholcodine</span> Chemical compound

Pholcodine is an opioid cough suppressant (antitussive). It helps suppress unproductive coughs and also has a mild sedative effect, but has little or no analgesic effects. It is also known as morpholinylethylmorphine and homocodeine.

<i>N</i>-Nitrosodimethylamine Chemical compound

N-Nitrosodimethylamine (NDMA), also known as dimethylnitrosamine (DMN), is an organic compound with the formula (CH3)2NNO. It is one of the simplest members of a large class of N-nitrosamines. It is a volatile yellow oil. NDMA has attracted wide attention as being highly hepatotoxic and a known carcinogen in laboratory animals.

<span class="mw-page-title-main">Ethcathinone</span> Simulant designer drug

Ethcathinone, also known as ethylpropion or ETH-CAT, is a stimulant drug of the phenethylamine, amphetamine, and cathinone chemical classes. It is an active metabolite of the prodrug diethylcathinone and is fully responsible for its effects. Ethcathinone has been identified as an ingredient in both quasi-legal "party pills", and, along with mephedrone, has also been reported as having been sold as "ecstasy" in the Australian city of Cairns.

Substituted amphetamines are a class of compounds based upon the amphetamine structure; it includes all derivative compounds which are formed by replacing, or substituting, one or more hydrogen atoms in the amphetamine core structure with substituents. The compounds in this class span a variety of pharmacological subclasses, including stimulants, empathogens, and hallucinogens, among others. Examples of substituted amphetamines are amphetamine (itself), methamphetamine, ephedrine, cathinone, phentermine, mephentermine, tranylcypromine, bupropion, methoxyphenamine, selegiline, amfepramone (diethylpropion), pyrovalerone, MDMA (ecstasy), and DOM (STP).

<span class="mw-page-title-main">Hydroxybupropion</span> Group of stereoisomers

Hydroxybupropion, or 6-hydroxybupropion, is the major active metabolite of the antidepressant and smoking cessation drug bupropion. It is formed from bupropion by the liver enzyme CYP2B6 during first-pass metabolism. With oral bupropion treatment, hydroxybupropion is present in plasma at area under the curve concentrations that are as many as 16–20 times greater than those of bupropion itself, demonstrating extensive conversion of bupropion into hydroxybupropion in humans. As such, hydroxybupropion is likely to play a very important role in the effects of oral bupropion, which could accurately be thought of as functioning largely as a prodrug to hydroxybupropion. Other metabolites of bupropion besides hydroxybupropion include threohydrobupropion and erythrohydrobupropion.

<span class="mw-page-title-main">Difelikefalin</span> Chemical compound

Difelikefalin, sold under the brand name Korsuva, is an opioid peptide used for the treatment of moderate to severe itch. It acts as a peripherally-restricted, highly selective agonist of the κ-opioid receptor (KOR).

Eptinezumab, sold under the brand name Vyepti, is a medication used for the preventive treatment of migraine in adults. It is a monoclonal antibody that targets calcitonin gene-related peptides (CGRP) alpha and beta. It is administered by intravenous infusion.

<span class="mw-page-title-main">Rimegepant</span> Medication for acute migraine in adults

Rimegepant, sold under the brand name Nurtec ODT among others, is a medication used for the acute treatment of migraine with or without aura in adults and the prophylactic/ preventive treatment of episodic migraine in adults. It is taken by mouth to dissolve on or under the tongue. It works by blocking CGRP receptors.

<span class="mw-page-title-main">Hexavalent vaccine</span> Single vaccine protecting against six individual diseases

A hexavalent vaccine, or 6-in-1 vaccine, is a combination vaccine with six individual vaccines conjugated into one, intended to protect people from multiple diseases. The term usually refers to the children's vaccine that protects against diphtheria, tetanus, pertussis, poliomyelitis, haemophilus B, and hepatitis B, which is used in more than 90 countries around the world including in Europe, Canada, Australia, Jordan, and New Zealand.

Regdanvimab, sold under the brand name Regkirona, is a human monoclonal antibody used for the treatment of COVID-19. The antibody is directed against the spike protein of SARS-CoV-2. It is developed by Celltrion. The medicine is given by infusion (drip) into a vein.

Somatrogon, sold under the brand name Ngenla, is a medication for the treatment of growth hormone deficiency. Somatrogon is a glycosylated protein constructed from human growth hormone and a small part of human chorionic gonadotropin which is appended to both the N-terminal and C-terminal.

<span class="mw-page-title-main">Deucravacitinib</span> Chemical compound

Deucravacitinib, sold under the brand name Sotyktu, is medication used for the treatment of moderate-to-severe plaque psoriasis. It is a tyrosine kinase 2 (TYK2) inhibitor and it is taken by mouth. It was developed by Bristol Myers Squibb.

References

  1. Anvisa (31 March 2023). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 4 April 2023). Archived from the original on 3 August 2023. Retrieved 16 August 2023.
  2. "Tenuate Product information". Health Canada . 25 April 2012. Archived from the original on 4 August 2022. Retrieved 3 August 2022.
  3. "Nobesine Product information". Health Canada . 25 April 2012. Archived from the original on 4 August 2022. Retrieved 3 August 2022.
  4. 1 2 "Tepanil (diethylpropion hydrochloride) tablet, extended release". Dailymed. National Institutes of Health. Archived from the original on 8 May 2021. Retrieved 4 August 2022.
  5. "Amfepramone. List of nationally authorized medicinal products" (PDF). Archived (PDF) from the original on 27 August 2021.
  6. 1 2 "Amfepramone-containing medicinal products". European Medicines Agency (EMA). 12 February 2021. Archived from the original on 7 March 2021. Retrieved 12 February 2021.
  7. 1 2 "SPC-DOC_PL 16133-0001" (PDF). Medicines Healthcare products Regulatory Agency. Essential Nutrition Ltd. 18 November 2011. Retrieved 18 July 2014.[ permanent dead link ]
  8. 1 2 Brayfield A, ed. (30 January 2013). "Diethylpropion Hydrochloride". Martindale: The Complete Drug Reference. London, UK: Pharmaceutical Press. Archived from the original on 27 August 2021. Retrieved 18 July 2014.
  9. "TGA Approved Terminology for Medicines, Section 1 – Chemical Substances" (PDF). Therapeutic Goods Administration (Tga). Therapeutic Goods Administration, Department of Health and Ageing, Australian Government. July 1999. p. 42. Archived (PDF) from the original on 11 February 2014. Retrieved 18 July 2014.
  10. Arias HR, Santamaría A, Ali SF (2009). "Pharmacological and neurotoxicological actions mediated by bupropion and diethylpropion". New Concepts of Psychostimulant Induced Neurotoxicity. International Review of Neurobiology. Vol. 88. pp. 223–55. doi:10.1016/S0074-7742(09)88009-4. ISBN   9780123745040. PMID   19897080.
  11. 1 2 Rothman RB, Baumann MH (2006). "Therapeutic potential of monoamine transporter substrates". Current Topics in Medicinal Chemistry. 6 (17): 1845–59. doi:10.2174/156802606778249766. PMID   17017961. Archived from the original on 23 October 2020. Retrieved 7 September 2020.
  12. USpatent 3001910,Schutte J,"Anorexigenic Propiophenones",issued 1961-09-26, assigned to Temmler-Werke
  13. Hyde JF, Browning E, Adams R (1928). "Synthetic Homologs of d,l-Ephedrine". Journal of the American Chemical Society. 50 (8): 2287–2292. doi:10.1021/ja01395a032.
  14. "Class C Drugs". Schedule 2 Controlled Drugs. UK Legislation. Archived from the original on 14 November 2012. Retrieved 7 February 2012.
  15. "EMA recommends withdrawal of marketing authorisation for amfepramone medicines". European Medicines Agency (EMA). 10 June 2022. Archived from the original on 10 June 2022. Retrieved 10 June 2022.
  16. Cohen S (1977). "Diethylpropion (tenuate): an infrequently abused anorectic". Psychosomatics. 18 (1): 28–33. doi: 10.1016/S0033-3182(77)71101-6 . PMID   850721.
  17. Jasinski DR, Krishnan S (June 2009). "Abuse liability and safety of oral lisdexamfetamine dimesylate in individuals with a history of stimulant abuse". Journal of Psychopharmacology. 23 (4): 419–27. doi:10.1177/0269881109103113. PMID   19329547. S2CID   6138292.
  18. Caplan J (May 1963). "Habituation to diethylpropion (Tenuate)". Canadian Medical Association Journal. 88 (18): 943–4. PMC   1921278 . PMID   14018413.