Baclofen Poisoning as therapeutic or Recreational use? : Case Report and Literature Review
Baclofen poisoning: therapeutic or recreational use? A case report and literature review
DOI:
https://doi.org/10.59722/rmcu.v3i2.1234Keywords:
Key Words: Baclofen; Intoxication; Coma.Abstract
Abstract
Introduction: Baclofen is a fat-soluble derivative of the neurotransmitter gamma-aminobutyric acid used as an approved medical treatment for spasticity related to multiple sclerosis and other spinal cord pathologies. In 2020, according to statistics, baclofen was reported as the only agent associated with overdose, with 2,112 cases of intentional use, 700 unintentional exposures, and 110 cases of adverse drug reactions, resulting in 2 to 12 deaths per year.
Clinical Case: A 32-year-old male patient who was admitted to the Emergency Department of the Dr. Juan Fernández Acute Care Hospital in the Autonomous City of Buenos Aires. The patient was found in a public area with decreased level of consciousness and episodes of apnea. Empty containers of baclofen and benzodiazepines were found in his possession, which initially suggested a possible suicide attempt by ingestion of these drugs.
In the initial management at the emergency department, he required mechanical respiratory support and was subsequently transferred to the critical care unit, where he remained hospitalized for 7 days. Afterwards, he continued follow-up in the toxicology ward for comprehensive care.
Conclusion: Baclofen intoxication is an increasing clinical problem, more frequently reported in North America and Europe, but also present in Latin America, often associated with recreational drug use. These cases may require advanced ICU management, including prolonged mechanical ventilation. The reported case highlights the importance of early airway intervention and intensive monitoring to support recovery. It also emphasizes the inappropriate use of baclofen for low back pain without clear indication, underscoring the need for strict prescription and follow-up. Finally, the potential concomitant use of other substances should always be considered as part of a comprehensive evaluation in such intoxications.
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References
Agabio R, Preti A, Gessa GL. Efficacy and tolerability of baclofen in substance use disorders: a systematic review. European Addiction Research. 2013;19(6):325–345. Disponible en: https://doi.org/10.1159/000347055
Albright AL, Thompson K, Carlos S, Minnigh MB. Cerebrospinal fluid baclofen concentrations in patients undergoing continuous intrathecal baclofen therapy. Developmental Medicine & Child Neurology. 2007;49(6):423–425. Disponible en: https://doi.org/10.1111/j.1469-8749.2007.00423.x
Babu K. GABA-B agonist (baclofen, phenibut) poisoning and withdrawal. En: UpToDate. 2024 feb 26.
Berger B, Vienenkoetter B, Korporal M, Rocco A, Meinck HM, Steiner T. Accidental intoxication with 60 mg intrathecal baclofen: survived. Neurocritical Care. 2012;16(3):428–432. Disponible en: https://doi.org/10.1007/s12028-011-9669-6
Boels D, Victorri-Vigneau C, Grall-Bronnec M, et al. Baclofen and alcohol-dependent patients: a real risk of severe self-poisoning. Basic & Clinical Pharmacology & Toxicology. 2017;121(4):353–359. Disponible en: https://doi.org/10.1111/bcpt.12809
Cho SR. Intrathecal baclofen therapy: pros and cons. Annals of Rehabilitation Medicine. 2023;47(1):1–3. Disponible en: https://doi.org/10.5535/arm.23003
Coffey RJ, Edgar TS, Francisco GE, et al. Abrupt withdrawal from intrathecal baclofen: recognition and management of a potentially life-threatening syndrome. Archives of Physical Medicine and Rehabilitation. 2002;83(6):735–741. Disponible en: https://doi.org/10.1053/apmr.2002.32820
Franchitto N, Rolland B, Pelissier F, et al. How to manage self-poisoning with baclofen in alcohol use disorder? Current updates. Frontiers in Psychiatry. 2018;9:417. Disponible en: https://doi.org/10.3389/fpsyt.2018.00417
Froestl W. Chemistry and pharmacology of GABA_B receptor ligands. Advances in Pharmacology. 2010;58:19–62. Disponible en: https://doi.org/10.1016/S1054-3589(10)58002-5
Ghannoum M, Berling I, Lavergne V, Roberts DM, Galvao T, Hoffman RS, Nolin TD, Lewington A, Doi K, Gosselin S, & EXTRIP Workgroup. Extracorporeal treatment for baclofen poisoning: systematic review and recommendations from the EXTRIP Workgroup. Kidney International. 2021;100(4):720–731. Disponible en: https://doi.org/10.1016/j.kint.2021.07.014
Gummin DD, Mowry JB, Beuhler MC, Spyker DA, Bronstein AC, Rivers LJ, Pham NPT, Weber J. 2020 Annual Report of the American Association of Poison Control Centers’ National Poison Data System (NPDS): 38th annual report. Clinical Toxicology. 2021;59(12):1282–1501. Disponible en: https://doi.org/10.1080/15563650.2021.1989785
Jamshidi N, Morley KC, Cairns R, Dawson A, Haber PS. A review of baclofen overdoses in Australia: calls to a poisons information centre and a case series. Alcohol and Alcoholism. 2019;54(1):73–78. Disponible en: https://doi.org/10.1093/alcalc/agy082
Koker A, Arslan G, Özden Ö, Karaarslan U, Er A, Duman M, Köroğlu T. An intoxication mimicking brain death: baclofen. Acta Neurologica Belgica. 2020;120(1):33–35. Disponible en: https://doi.org/10.1007/s13760-018-1012-y
Lake W, Shah H. Intrathecal baclofen infusion for the treatment of movement disorders. Neurosurgery Clinics of North America. 2019;30(2):203–209. Disponible en: https://doi.org/10.1016/j.nec.2018.12.002
Mahvash M, Maslehaty H, Warneke N, Doukas A, Petridis AK, Mehdorn HM. Potential correlation of intrathecal baclofen concentration and clinical improvement after high dose intrathecal intoxication: a case report. Clinical Neurology and Neurosurgery. 2011;113(9):806–807. Disponible en: https://doi.org/10.1016/j.clineuro.2011.08.005
Masrour M, Zare A, Presedo A, Nabian MH. Intrathecal baclofen efficacy for managing motor function and spasticity severity in patients with cerebral palsy: a systematic review and meta-analysis. BMC Neurology. 2024;24(1):1–16. Disponible en: https://doi.org/10.1186/s12883-024-03647-7
Meulendijks D, Khan S, Koks CH, et al. Baclofen overdose treated with continuous venovenous hemofiltration. European Journal of Clinical Pharmacology. 2015;71(3):357–361. Disponible en: https://doi.org/10.1007/s00228-014-1802-y
Morozov IN, Nesterin KV. Intrathecal baclofen therapy: a 30-year experience. Journal of Rehabilitation Medicine. 2024;56(1):10–15.
Romito JW, Turner ER, Rosener JA, Coldiron L, Udipi A, Nohrn L, Tausiani J, Romito BT. Baclofen therapeutics, toxicity, and withdrawal: a narrative review. SAGE Open Medicine. 2021;9:1–14. Disponible en: https://doi.org/10.1177/20503121211022197
Sinclair J, Agabio R, et al. The use of baclofen to treat patients with alcohol use disorder: the Cagliari expert consensus statement. The Lancet Psychiatry. 2018;5(12):957–965. Disponible en: https://doi.org/10.1016/S2215-0366(18)30303-1
Watve SV, Sivan M, Raza WA, Jamil FF. Management of acute overdose or withdrawal state in intrathecal baclofen therapy. Spinal Cord. 2011;50(2):107–111. Disponible en: https://doi.org/10.1038/sc.2011.112
Winter G, Beni-Adani L, Ben-Pazi H. Intrathecal baclofen therapy—practical approach: clinical benefits and complication management. Journal of Child Neurology. 2018;33(11):734–741. Disponible en: https://doi.org/10.1177/0883073818785074
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