Opioid analgesic: Difference between revisions

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==Effectiveness==
Narcotics are commonly prescribed for [[pain]], and their usage may be increasing.<ref name="pmid18167408">{{cite journal |author=Pletcher MJ, Kertesz SG, Kohn MA, Gonzales R |title=Trends in opioid prescribing by race/ethnicity for patients seeking care in US emergency departments |journal=JAMA |volume=299 |issue=1 |pages=70–8 |year=2008 |pmid=18167408 |doi=10.1001/jama.2007.64}}</ref> In emergency rooms, non-Hispanic white patients are more likely to receive narcotics than patients of other ethnicities.<ref name="pmid18167408"/>
Narcotics are effective for both short (1-16 weeks)<ref name="pmid16717269">{{cite journal |author=Furlan AD, Sandoval JA, Mailis-Gagnon A, Tunks E |title=Opioids for chronic noncancer pain: a meta-analysis of effectiveness and side effects |journal=CMAJ |volume=174 |issue=11 |pages=1589–94 |year=2006 |pmid=16717269 |doi=10.1503/cmaj.051528 |url=http://www.cmaj.ca/cgi/pmidlookup?view=long&pmid=16717269}}</ref> and long-term (6-24 months) use<ref name="pmid15561393">{{cite journal |author=Kalso E, Edwards JE, Moore RA, McQuay HJ |title=Opioids in chronic non-cancer pain: systematic review of efficacy and safety |journal=Pain |volume=112 |issue=3 |pages=372–80 |year=2004 |pmid=15561393 |doi=10.1016/j.pain.2004.09.019 |url=http://linkinghub.elsevier.com/retrieve/pii/S0304-3959(04)00447-6}}</ref>.
Narcotics, with long-term use, 80% of patients may have [[drug toxicity]], most commonly gastrointestinal. In addition, substrance abuse and "aberrant medication-taking behaviors" may occur.<ref name="pmid17227935">{{cite journal |author=Martell BA, O'Connor PG, Kerns RD, ''et al'' |title=Systematic review: opioid treatment for chronic back pain: prevalence, efficacy, and association with addiction |journal=Ann. Intern. Med. |volume=146 |issue=2 |pages=116–27 |year=2007 |pmid=17227935 |doi= |url=http://www.annals.org/cgi/content/full/146/2/116 |issn=}}</ref> Advice for the treatment of acute pain among patients on chronic methadone is available.<ref name="pmid16418412">{{cite journal |author=Alford DP, Compton P, Samet JH |title=Acute pain management for patients receiving maintenance methadone or buprenorphine therapy |journal=Ann. Intern. Med. |volume=144 |issue=2 |pages=127–34 |year=2006 |pmid=16418412 |doi= |url=http://www.annals.org/cgi/content/full/144/2/127 |issn=}}</ref>


==References==
==References==
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Revision as of 21:03, 21 June 2008

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Opioid analgesics, also called narcotics, are drugs usually used for treating pain. Opiod analgesics are defined as "all of the natural and semisynthetic alkaloid derivatives from opium, their pharmacologically similar synthetic surrogates, as well as all other compounds whose opioid-like actions are blocked by the nonselective opioid receptor antagonist naloxone.[1]

Pharmacology

There a several opioid receptors. All are are G-protein-coupled cell surface receptors.

  • Mu receptors are responsible for analgesia.
  • Delta
  • Kappa

Available opioid analgesics

Current opioid analgesics are:[2]

  1. 18,19-dihydroetorphine
  2. Alfentanil
  3. Alphaprodine
  4. beta-casomorphins
  5. Buprenorphine
  6. Butorphanol
  7. carfentanil
  8. Codeine
  9. deltorphin I, Ala(2)-
  10. dermorphin
  11. Dextromoramide
  12. Dextropropoxyphene
  13. dezocine
  14. dihydrocodeine
  15. Dihydromorphine
  16. Diphenoxylate
  17. dynorphin (1-13)
  18. endomorphin 1
  19. endomorphin 2
  20. Enkephalin, Ala(2)-MePhe(4)-Gly(5)-
  21. Enkephalin, D-Penicillamine (2,5)-
  22. enkephalin-Met, Ala(2)-
  23. eseroline
  24. Ethylketocyclazocine
  25. Ethylmorphine
  26. Etorphine
  27. Fentanyl
  28. Heroin
  29. Hydrocodone
  30. Hydromorphone
  31. ketobemidone
  32. Levorphanol
  33. lofentanil
  34. Meperidine
  35. Meptazinol
  36. Methadone
  37. Methadyl Acetate
  38. Morphine
  39. Nalbuphine
  40. nocistatin
  41. Opiate Alkaloids
  42. Opium
  43. Oxycodone
  44. Oxymorphone
  45. paracymethadol
  46. Pentazocine
  47. Phenazocine
  48. Phenoperidine
  49. Pirinitramide
  50. Promedol
  51. protopine
  52. remifentanil
  53. Sufentanil
  54. Tilidine
  55. Tramadol
  56. tyrosyl-1,2,3,4-tetrahydro-3-isoquinolinecarbonyl-phenylalanyl-phenylalanine

Effectiveness

Narcotics are commonly prescribed for pain, and their usage may be increasing.[3] In emergency rooms, non-Hispanic white patients are more likely to receive narcotics than patients of other ethnicities.[3]

Narcotics are effective for both short (1-16 weeks)[4] and long-term (6-24 months) use[5].

Narcotics, with long-term use, 80% of patients may have drug toxicity, most commonly gastrointestinal. In addition, substrance abuse and "aberrant medication-taking behaviors" may occur.[6] Advice for the treatment of acute pain among patients on chronic methadone is available.[7]

References

  1. ↑ Katzung, Bertram G. (2006). Basic and clinical pharmacology. New York: McGraw-Hill Medical Publishing Division, 512. ISBN 0-07-145153-6. 
  2. ↑ Anonymous (2024), Opioid analgesics (English). Medical Subject Headings. U.S. National Library of Medicine.
  3. ↑ 3.0 3.1 Pletcher MJ, Kertesz SG, Kohn MA, Gonzales R (2008). "Trends in opioid prescribing by race/ethnicity for patients seeking care in US emergency departments". JAMA 299 (1): 70–8. DOI:10.1001/jama.2007.64. PMID 18167408. Research Blogging.
  4. ↑ Furlan AD, Sandoval JA, Mailis-Gagnon A, Tunks E (2006). "Opioids for chronic noncancer pain: a meta-analysis of effectiveness and side effects". CMAJ 174 (11): 1589–94. DOI:10.1503/cmaj.051528. PMID 16717269. Research Blogging.
  5. ↑ Kalso E, Edwards JE, Moore RA, McQuay HJ (2004). "Opioids in chronic non-cancer pain: systematic review of efficacy and safety". Pain 112 (3): 372–80. DOI:10.1016/j.pain.2004.09.019. PMID 15561393. Research Blogging.
  6. ↑ Martell BA, O'Connor PG, Kerns RD, et al (2007). "Systematic review: opioid treatment for chronic back pain: prevalence, efficacy, and association with addiction". Ann. Intern. Med. 146 (2): 116–27. PMID 17227935. [e]
  7. ↑ Alford DP, Compton P, Samet JH (2006). "Acute pain management for patients receiving maintenance methadone or buprenorphine therapy". Ann. Intern. Med. 144 (2): 127–34. PMID 16418412. [e]
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