Dronabinol




Not to be confused with Droperidol.





































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The International Nonproprietary Name Dronabinol, sold as trade names Marinol and Syndros, is an appetite stimulant, antiemetic, and sleep apnea reliever.[1] It is approved by the FDA, as safe and effective, for HIV/AIDS induced anorexia and chemotherapy induced nausea and vomiting only.[2][3][4]


The pharmaceutical formulation, an oily resin in capsules, is available by prescription in the US, Canada, Germany, Australia and New Zealand. Possible exceptions for off label use may be in US states passing laws reserving the right to differ from particular FDA regulations.[citation needed]


Dronabinol is the principal psychoactive constituent enantiomer form, (−)-trans-Δ⁹-tetrahydrocannabinol, found in cannabis.[5] Dronabinol does not include the many other tetrahydrocannabinol (THC) isomers of cannabinoid.[citation needed]




Contents






  • 1 Medical uses


  • 2 Adverse effects


  • 3 History


  • 4 Society and culture


    • 4.1 Brand names


      • 4.1.1 Comparisons with medical cannabis






  • 5 See also


  • 6 References


  • 7 External links





Medical uses


Dronabinol demonstrates significant improvement in sleep apnea scores.[6][7][8] Phase 2B clinical trials for FDA approval were completed in 2017.[9][10][11]



Adverse effects


A mild overdose of dronabinol presents drowsiness, cotton-mouth, euphoria, and tachycardia; whereas a severe overdose presents lethargy, slurred speech, decreased motor coordination, and postural hypotension.[2][12]



History


On May 13, 1986, the Drug Enforcement Administration (DEA) issued a Final Rule and Statement of Policy authorizing the "rescheduling of synthetic dronabinol in sesame oil and encapsulated in soft gelatin capsules from Schedule I to Schedule II" (DEA 51 FR 17476-78). This permitted medical use of Marinol, albeit with the severe restrictions associated with Schedule II status.[13] For instance, refills of Marinol prescriptions were not permitted. At its 10th meeting, on April 29, 1991, the Commission on Narcotic Drugs, in accordance with article 2, paragraphs 5 and 6, of the Convention on Psychotropic Substances, decided that Δ⁹-tetrahydrocannabinol (also referred to as Δ⁹-THC) and its stereochemical variants should be transferred from Schedule I to Schedule II of that Convention. This released Marinol from the restrictions imposed by Article 7 of the Convention (See also United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances).[citation needed]


An article published in the April–June 1998 issue of the Journal of Psychoactive Drugs found that "Healthcare professionals have detected no indication of scrip-chasing or doctor-shopping among the patients for whom they have prescribed dronabinol". The authors state that Marinol has a low potential for abuse.[14]


In 1999, Marinol was rescheduled from Schedule II to III of the Controlled Substances Act, reflecting a finding that THC had a potential for abuse less than that of cocaine and heroin. This rescheduling constituted part of the argument for a 2002 petition for removal of cannabis from Schedule I of the Controlled Substances Act, in which petitioner Jon Gettman noted, "Cannabis is a natural source of dronabinol (THC), the ingredient of Marinol, a Schedule III drug. There are no grounds to schedule cannabis in a more restrictive schedule than Marinol".[15]


At its 33rd meeting, in 2003, the World Health Organization Expert Committee on Drug Dependence recommended transferring THC to Schedule IV of the Convention, citing its medical uses and low abuse potential.[16]



Society and culture



Brand names



Dronabinol is marketed as Marinol and Syndros,[17] a registered trademark of Solvay Pharmaceuticals. Dronabinol is also marketed, sold, and distributed by PAR Pharmaceutical Companies under the terms of a license and distribution agreement with SVC pharma LP, an affiliate of Rhodes Technologies for Marinol and Insys Pharmaceuticals for Syndros.[citation needed] Dronabinol is available as a prescription drug (under Marinol and Syndros [18]) in several countries including the United States, Germany, South Africa and Australia.[19] In the United States, Marinol is a Schedule III drug, available by prescription, considered to be non-narcotic and to have a low risk of physical or mental dependence. Efforts to get cannabis rescheduled as analogous to Marinol have not succeeded thus far, though a 2002 petition has been accepted by the DEA. As a result of the rescheduling of Marinol from Schedule II to Schedule III, refills are now permitted for this substance. Marinol's U.S. Food and Drug Administration (FDA) approval for medical use has raised much controversy[20] as to why natural THC is considered a schedule I drug.[21]



Comparisons with medical cannabis


Further information: Medical cannabis

Female cannabis plants contain at least 113 cannabinoids,[22] including cannabidiol (CBD), thought to be the major anticonvulsant that helps people with multiple sclerosis;[23] and cannabichromene (CBC), an anti-inflammatory which may contribute to the pain-killing effect of cannabis.[24]


It takes over one hour for Marinol to reach full systemic effect,[25] compared to seconds or minutes for smoked or vaporized cannabis.[26]Mark Kleiman, director of the Drug Policy Analysis Program at UCLA's School of Public Affairs said of Marinol, "It wasn't any fun and made the user feel bad, so it could be approved without any fear that it would penetrate the recreational market, and then used as a club with which to beat back the advocates of whole cannabis as a medicine."[27]


Some people accustomed to inhaling just enough cannabis smoke to manage symptoms have complained of too-intense intoxication from Marinol's predetermined dosages.[citation needed] Many people using Marinol have said that Marinol produces a more acute psychedelic effect than cannabis, and it has been speculated that this disparity can be explained by the moderating effect of the many non-THC cannabinoids present in cannabis.[citation needed] For that reason, alternative THC-containing medications based on botanical extracts of the cannabis plant such as nabiximols are being developed.


Clinical trials comparing the use of cannabis extracts with Marinol in the treatment of cancer cachexia have demonstrated equal efficacy and well-being among subjects in the two treatment arms.[28] United States federal law currently registers dronabinol as a Schedule III controlled substance, but all other cannabinoids remain Schedule I, except synthetics like nabilone.[29]



See also



  • Epidiolex

  • Sativex



References





  1. ^ "Can Dronabinol Help Treat Sleep Apnea? | HealthCentral". www.healthcentral.com. Retrieved 2018-11-04..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ ab "Marinol (Dronabinol)" (PDF). US Food and Drug Administration. September 2004. Retrieved 14 January 2018.


  3. ^ "Cannabis and Cannabinoids". National Cancer Institute. Retrieved 12 January 2014.


  4. ^ Badowski ME (September 2017). "A review of oral cannabinoids and medical marijuana for the treatment of chemotherapy-induced nausea and vomiting: a focus on pharmacokinetic variability and pharmacodynamics". Cancer Chemotherapy and Pharmacology. 80 (3): 441–449. doi:10.1007/s00280-017-3387-5. PMC 5573753. PMID 28780725.


  5. ^ "List of psychotropic substances under international control". International Narcotics Control Board. International Narcotics Control Board. Archived from the original (PDF) on |archive-url= requires |archive-date= (help). Retrieved 25 April 2018. This international non-proprietary name refers to only one of the stereochemical variants of delta-9-tetrahydrocannabinol, namely (−)-trans-delta-9-tetrahydrocannabinol


  6. ^ "(PDF) Proof of Concept Trial of Dronabinol in Obstructive Sleep Apnea". ResearchGate. Retrieved 2018-11-04.


  7. ^ "Can Dronabinol Help Treat Sleep Apnea? | HealthCentral". www.healthcentral.com. Retrieved 2018-11-04.


  8. ^ Carley DW, Prasad B, Reid KJ, Malkani R, Attarian H, Abbott SM, Vern B, Xie H, Yuan C, Zee PC (January 2018). "Pharmacotherapy of Apnea by Cannabimimetic Enhancement, the PACE Clinical Trial: Effects of Dronabinol in Obstructive Sleep Apnea". Sleep. 41 (1). doi:10.1093/sleep/zsx184. PMC 5806568. PMID 29121334.


  9. ^ "Drug Dronabinol Reduces Symptoms of Obstructive Sleep Apnea, Finds Phase 2B Study - Sleep Review". Sleep Review. Retrieved 2018-11-04.


  10. ^ "Synthetic Cannabis-Like Drug Reduces Sleep Apnea". Neuroscience News. 2017-11-29. Retrieved 2018-11-04.


  11. ^ Carley, DW; Prasad, B; Reid, KJ; Malkani, R; Attarian, H; Abbott, S; Vern, B; Xie, H; Yuan, C (2017-04-28). "0558 DRONABINOL REDUCES AHI AND DAYTIME SLEEPINESS IN PATIENTS WITH MODERATE TO SEVERE OBSTRUCTIVE SLEEP APNEA SYNDROME". Sleep. 40 (suppl_1): A207–A208. doi:10.1093/sleepj/zsx050.557. ISSN 0161-8105.


  12. ^ "Dronabinol capsule (American Health Packaging)". US National Library of Medicine. July 2012. Retrieved 12 January 2014.


  13. ^ 51 Fed. Reg. 17476 (1986), Tuesday, May 13, 1986, pages 17476-17478


  14. ^ Calhoun SR, Galloway GP, Smith DE (1998). "Abuse potential of dronabinol (Marinol)". Journal of Psychoactive Drugs. 30 (2): 187–96. doi:10.1080/02791072.1998.10399689. PMID 9692381.
    [better source needed]


  15. ^ "Petition to Reschedule Cannabis (Marijuana)" (PDF). Coalition for Rescheduling Cannabis. 9 October 2002.
    [better source needed]


  16. ^ "WHO Expert Committee on Drug Dependence". World Health Organization. Retrieved 12 January 2014.


  17. ^ EMCDDA, ELDD Comparative Study, May 2002.


  18. ^ "Marinol – the Legal Medical Use for the Marijuana Plant". Drug Enforcement Administration. Archived from the original on 21 October 2002. Retrieved 20 April 2011.


  19. ^ Alchimia Blog, Marijuana and Medicine: Cesamet, Marinol, Sativex


  20. ^ Downs, David (21 October 2014). "War on marijuana unconstitutional, doctors testify in federal court Monday". sfgate.com. Retrieved 21 October 2014.


  21. ^ Eustice, Carol (12 August 1997). "Medicinal Marijuana: A Continuing Controversy". About.com. Retrieved 20 April 2011.


  22. ^ Aizpurua-Olaizola O, Soydaner U, Öztürk E, Schibano D, Simsir Y, Navarro P, Etxebarria N, Usobiaga A (February 2016). "Evolution of the Cannabinoid and Terpene Content during the Growth of Cannabis sativa Plants from Different Chemotypes". Journal of Natural Products. 79 (2): 324–31. doi:10.1021/acs.jnatprod.5b00949. PMID 26836472.


  23. ^ Pickens JT (April 1981). "Sedative activity of cannabis in relation to its delta'-trans-tetrahydrocannabinol and cannabidiol content". British Journal of Pharmacology. 72 (4): 649–56. doi:10.1111/j.1476-5381.1981.tb09145.x. PMC 2071638. PMID 6269680.


  24. ^ Burns TL, Ineck JR (February 2006). "Cannabinoid analgesia as a potential new therapeutic option in the treatment of chronic pain". The Annals of Pharmacotherapy. 40 (2): 251–60. doi:10.1345/aph.1G217. PMID 16449552.


  25. ^ MARINOL (dronabinol) capsule[dead link] drug label/data at Daily Med from U.S. National Library of Medicine, National Institutes of Health.


  26. ^ McKim, William A (2002). Drugs and Behavior: An Introduction to Behavioral Pharmacology (5th ed.). Prentice Hall. p. 400. ISBN 0-13-048118-1.


  27. ^ Greenberg, Gary (1 November 2005). "Respectable Reefer". Mother Jones. Retrieved 8 April 2010.


  28. ^ "Cannabis and Cannabinoids (PDQ®)". Cancer Topics. National Cancer Institute, U.S. Department of Health and Human Services.


  29. ^ "Government eases restrictions on pot derivative". Online Athens. Archived from the original on 2014-12-16. Retrieved 12 January 2014.




External links


  • Medlineplus.gov on Dronabinol



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