User:Mr. Ibrahem/Naltrexone

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Mr. Ibrahem/Naltrexone
Clinical data
Pronunciation/ˌnælˈtrɛksn/
Trade namesReVia, Vivitrol, others
Other namesEN-1639A; UM-792; N-Cyclopropyl-methylnoroxymorphone; N-Cyclopropylmethyl-14-hydroxydihydro-morphinone; 17-(Cyclopropylmethyl)-4,5α-epoxy-3,14-dihydroxymorphinan-6-one
AHFS/Drugs.comMonograph
MedlinePlusa685041
License data
Pregnancy
category
  • AU: B3
Routes of
administration
By mouth, intramuscular injection, subcutaneous implant
Drug classOpioid antagonist[1]
Legal status
Legal status
  • AU: S4 (Prescription only)
  • CA: ℞-only
  • UK: POM (Prescription only)
  • US: ℞-only
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability5–40%
Protein binding21%
MetabolismLiver
Elimination half-lifeNaltrexone: 4 hours
6β-Naltrexol: 13 hours
ExcretionUrine
Identifiers
  • (4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline-7-one
Chemical and physical data
FormulaC20H23NO4
Molar mass341.407 g·mol−1
3D model (JSmol)
Melting point169 °C (336 °F)
  • O=C4[C@@H]5Oc1c2c(ccc1O)C[C@H]3N(CC[C@]25[C@@]3(O)CC4)CC6CC6
  • InChI=1S/C20H23NO4/c22-13-4-3-12-9-15-20(24)6-5-14(23)18-19(20,16(12)17(13)25-18)7-8-21(15)10-11-1-2-11/h3-4,11,15,18,22,24H,1-2,5-10H2/t15-,18+,19+,20-/m1/s1 checkY
  • Key:DQCKKXVULJGBQN-XFWGSAIBSA-N checkY
 ☒NcheckY (what is this?)  (verify)

Naltrexone, sold under the brand names ReVia and Vivitrol among others, is a medication primarily used to manage alcohol or opioid dependence.[1] An opioid-dependent person should not receive naltrexone before detoxification.[1] It is taken by mouth or by injection into a muscle.[1] Effects begin within 30 minutes.[1] A decreased desire for opioids, though, may take a few weeks.[1]

Side effects may include trouble sleeping, anxiety, nausea, and headaches.[1] In those still on opioids, opioid withdrawal may occur.[1] Use is not recommended in people with liver failure.[1] It is unclear if use is safe during pregnancy.[1][3] Naltrexone is an opioid antagonist and works by blocking the effects of opioids, both those from inside and outside the body.[1]

Naltrexone was first made in 1965 and was approved for medical use in the United States in 1984.[1][4] It is on the World Health Organization's List of Essential Medicines.[5] As of 2019, the wholesale cost of tablets is about US$0.80 per day in the United States.[6] The extended-release injections cost about $1,267 per month ($41 per day).[6] Naltrexone, as naltrexone/bupropion, is also used to treat obesity.[7]

References[edit]

  1. ^ a b c d e f g h i j k l m n "Naltrexone Monograph for Professionals - Drugs.com". Drugs.com. American Society of Health-System Pharmacists. Archived from the original on 9 November 2017. Retrieved 9 November 2017.
  2. ^ "WHOCC - ATC/DDD Index". www.whocc.no. Archived from the original on 24 July 2020. Retrieved 9 September 2020.
  3. ^ Tran TH, Griffin BL, Stone RH, Vest KM, Todd TJ (July 2017). "Methadone, Buprenorphine, and Naltrexone for the Treatment of Opioid Use Disorder in Pregnant Women". Pharmacotherapy. 37 (7): 824–839. doi:10.1002/phar.1958. PMID 28543191.
  4. ^ Sadock, Benjamin J.; Sadock, Virginia A.; Sussman, Norman (2012). Kaplan & Sadock's Pocket Handbook of Psychiatric Drug Treatment. Lippincott Williams & Wilkins. p. 265. ISBN 9781451154467. Archived from the original on 2017-12-05.
  5. ^ World Health Organization (2023). The selection and use of essential medicines 2023: web annex A: World Health Organization model list of essential medicines: 23rd list (2023). Geneva: World Health Organization. hdl:10665/371090. WHO/MHP/HPS/EML/2023.02.
  6. ^ a b "NADAC as of 2019-07-17 | Data.Medicaid.gov". Centers for Medicare and Medicaid Services. Archived from the original on 2019-07-16. Retrieved 16 July 2019.
  7. ^ "Naltrexone/bupropion for obesity". Drug and Therapeutics Bulletin. 55 (11): 126–129. November 2017. doi:10.1136/dtb.2017.11.0550. PMID 29117992.