Abstract
Background
Although hyperthermia is described after cocaine intoxication, the two hyperthermic
cases discussed were unusual in severity and duration for cocaine alone. Synephrine
was found in biological samples of these patients in high concentrations and was suspected
to be an adulterant in illicitly obtained drugs.
Case Report
Two patients presented to a tertiary care university hospital within 2 days of each
other after recreational drug use with delayed and protracted hyperthermia. Synephrine
was later found in high concentrations in biological samples as an unexpected drug
adulterant. The first patient's presentation came with delayed recognition of hyperthermia
and implementation of aggressive cooling measures; he entered multisystem organ failure
with prolonged intensive care unit stay and significant morbidity. The second patient's
hyperthermia was recognized promptly, and she received early, aggressive cooling,
including deep sedation and ice water submersion. She left against medical advice
from the hospital at her baseline 3 days after presentation.
Why Should an Emergency Physician Be Aware of This?
Synephrine is a suspected adulterant that may be associated with profound hyperthermia.
Early recognition of drug overdose and working knowledge of common adulterants can
facilitate early targeted management, such as aggressive cooling measures, which may
prevent morbidity and mortality.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Journal of Emergency MedicineAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Mechanism of cocaine-induced hyperthermia in humans.Ann Intern Med. 2002; 136: 785-791
- Ambient temperature and mortality from unintentional cocaine overdose.JAMA. 1998; 279: 1795-1800
- Rhabdomyolysis and hyperthermia after cocaine abuse: a variant of the neuroleptic malignant syndrome?.Acta Neurol Scand. 1995; 92: 161-165
- Hyperthermia induced pathophysiology of the central nervous system.Int J Hyperthermia. 2003; 19: 325-354
- Rapid death during cocaine abuse: a variant of the neuroleptic malignant syndrome?.Am J Drug Alcohol Abuse. 1988; 14: 335-346
- Synephrine: from trace concentrations to massive consumption in weight-loss.Food Chem Toxicol. 2011; 49: 8-16
- Human pharmacology of a performance-enhancing dietary supplement under resting and exercise conditions.Br J Clin Pharmacol. 2008; 65: 833-840
- STEMI in a 24-year-old man after use of a synephrine-containing dietary supplement: a case report and review of the literature.Tex Heart Inst J. 2009; 36: 586-590
- Ischemic stroke associated with use of an ephedra-free dietary supplement containing synephrine.Mayo Clin Proc. 2005; 80: 541-545
- Elimination of cocaine and metabolites in plasma, saliva, and urine following repeated oral administration to human volunteers.J Anal Toxicol. 2000; 24: 467-477
- Pharmakokinetik und metabolismus von 3H-Synephrin [Pharmacokinetics and metabolism of 3H-synephrine (author's transl)].Arzneimittelforschung. 1978; 28: 2326-2331
- Selective activation of beta3-adrenoceptors by octopamine: comparative studies in mammalian fat cells.Naunyn Schmiedebergs Arch Pharmacol. 1999; 359: 310-321
- Toxin-induced hyperthermic syndromes.Med Clin North Am. 2005; 89: 1277-1296
- Disposition of Toxic Drugs and Chemicals in Man.Biochemical Publications, 2014
- DEA TOX: Quarterly Report-2nd Quarter 2022.U.S. Drug Enforcement Administration, 2022
Article info
Publication history
Published online: November 12, 2022
Accepted:
November 6,
2022
Received in revised form:
September 27,
2022
Received:
June 13,
2022
Footnotes
RECEIVED: 13 June 2022; FINAL SUBMISSION RECEIVED: 27 September 2022; ACCEPTED: 6 November 2022
Identification
Copyright
© 2022 Elsevier Inc. All rights reserved.