Abstract
Serotonin-specific reuptake inhibitors (SSRIs) are generally considered safe drugs but fatal adverse effects do sometimes occur, often as a consequence of interactions with other serotonin active drugs. Polypharmacy is usually a problem that the elderly encounter, but it can also have dire consequences for young people, especially when an underlying heart condition is present. Thus, failure to diagnose heart disease and the use of contraindicated medications can be a lethal combination, irrespective of age. Here we present a case of a young adult suffering from bipolar disorder who used a combination of two SSRIs (citalopram and fluoxetine) and a monoamine oxidase inhibitor (MAO; moclobemide) with tragic consequences. The deceased also suffered from undiagnosed hypertrophic cardiomyopathy and was carrier of a genotype that may have predisposed him to increased sensitivity to SSRIs. The apparent difficulty in establishing the manner of death in this case is also discussed.
Similar content being viewed by others
References
Bezchlibnyk-Butler K, Aleksic I, Kennedy SH. Citalopram--a review of pharmacological and clinical effects. J Psychiatry Neurosci. 2000;25:241–54.
http://www.fda.gov/Drugs/DrugSafety/ucm297391.htm. Accessed 5 Jan 2018.
Friberg LE, Isbister GK, Hackett LP, Duffull SB. The population pharmacokinetics of citalopram after deliberate self-poisoning: a Bayesian approach. J Pharmacokinet Pharmacodyn. 2005;32:571–605.
Pilgrim JL, Gerostamoulos D, Drummer OH. Deaths involving contraindicated and inappropriate combinations of serotonergic drugs. Int J Legal Med. 2011;125:803–15.
Pilgrim JL, Gerostamoulos D, Drummer OH. Review: pharmacogenetic aspects of the effect of cytochrome P450 polymorphisms on serotonergic drug metabolism, response, interactions, and adverse effects. Forensic Sci Med Pathol. 2011;7:162–84.
Boyer EW, Shannon M. The serotonin syndrome. N Engl J Med. 2005;352:1112–20.
Bachmann CJ, Aagaard L, Burcu M, Glaeske G, Kalverdijk LJ, Petersen I, et al. Trends and patterns of antidepressant use in children and adolescents from five western countries, 2005-2012. Eur Neuropsychopharmacol. 2016;26:411–9.
Gillman K. Moclobemide and the risk of serotonin toxicity (or serotonin syndrome). CNS Drug Rev. 2004;10:83–5.
Dams R, Benijts TH, Lambert WE, Van Bocxlaer JF, Van Varenbergh D, Van Peteghem C, et al. A fatal case of serotonin syndrome after combined moclobemide-citalopram intoxication. J Anal Toxicol. 2001;25:147–51.
Wu ML, Deng JF. Fatal serotonin toxicity caused by moclobemide and fluoxetine overdose. Chang Gung Med J. 2011;34:644–9.
Mastrogianni O, Gbandi E, Orphanidis A, Raikos N, Goutziomitrou E, Kolibianakis EM, et al. Association of the CYP2B6 c.516G>T polymorphism with high blood propofol concentrations in women from northern Greece. Drug Metab Pharmacokinet. 2014;29:215–8.
Papazisis G, Goulas A, Sarrigiannidis A, Bargiota S, Antoniadis D, Raikos N, et al. ABCB1 and CYP2D6 polymorphisms and treatment response of psychotic patients in a naturalistic setting. Hum Psychopharmacol. 2018; https://doi.org/10.1002/hup.2644.
Launiainen T, Ojanperä I. Drug concentrations in post-mortem femoral blood compared with therapeutic concentrations in plasma. Drug Test Anal. 2014;6:308–16.
Winek CL, Wahba WW, Winek CL Jr, Balzer TW. Drug and chemical blood-level data 2001. Forensic Sci Int 2001;122:107–123.
Musshoff F, Padosch S, Steinborn S, Madea B. Fatal blood and tissue concentrations of more than 200 drugs. Forensic Sci Int. 2004;142:161–210.
Schulz M, Iwersen-Bergmann S, Andresen H, Schmoldt A. Therapeutic and toxic blood concentrations of nearly 1,000 drugs and other xenobiotics. Crit Care. 2012;16:R136.
Hooten WM, Hartman WR, Black JL 3rd, Laures HJ, Walker DL. Associations between serotonin transporter gene polymorphisms and heat pain perception in adults with chronic pain. BMC Med Genet 2013;14:78.
Ojanperä I, Kriikku P, Vuori E. Fatal toxicity index of medicinal drugs based on a comprehensive toxicology database. Int J Legal Med. 2016;130:1209–16.
Fu K, Konrad RJ, Hardy RW, Brissie RM, Robinson CA. An unusual multiple drug intoxication case involving citalopram. J Anal Toxicol. 2000;24:648–50.
Rohrig TP, Prouty RW. Fluoxetine overdose: a case report. J Anal Toxicol. 1989;13:305–7.
Koski A, Ojanperä I, Vuori E. Interaction of alcohol and drugs in fatal poisonings. Hum Exp Toxicol. 2003;22:281–7.
Collier DA, Stöber G, Li T, Heils A, Catalano M, Di Bella D, et al. A novel functional polymorphism within the promoter of the serotonin transporter gene: possible role in susceptibility to affective disorders. Mol Psychiatry. 1996;1:453–60.
Zhu J, Klein-Fedyshin M, Stevenson JM. Serotonin transporter gene polymorphisms and selective serotonin reuptake inhibitor tolerability: review of pharmacogenetic evidence. Pharmacotherapy. 2017;37:1089–104.
Talarico G, Tosto G, Pietracupa S, Piacentini E, Canevelli M, Lenzi GL, et al. Serotonin toxicity: a short review of the literature and two case reports involving citalopram. Neurol Sci. 2011;32:507–9.
Unterecker S, Warrings B, Deckert J, Pfuhlmann B. Correlation of QTc interval prolongation and serum level of citalopram after intoxication--a case report. Pharmacopsychiatry. 2012;45:30–4.
Kronenberg S, Apter A, Brent D, Schirman S, Melhem N, Pick N, et al. Serotonin transporter polymorphism (5-HTTLPR) and citalopram effectiveness and side effects in children with depression and/or anxiety disorders. J Child Adolesc Psychopharmacol. 2007;17:741–50.
Caspi A, Sugden K, Moffitt TE, Taylor A, Craig IW, Harrington H, et al. Influence of life stress on depression: moderation by a polymorphism in the 5-HTT gene. Science. 2003;301:386–9.
Cao J, Hudziak JJ, Li D. Multi-cultural association of the serotonin transporter gene (SLC6A4) with substance use disorder. Neuropsychopharmacology. 2013;38:1737–47.
Andre K, Kampman O, Illi A, Viikki M, Setälä-Soikkeli E, Mononen N, et al. SERT and NET polymorphisms, temperament and antidepressant response. Nord J Psychiatry. 2015;69:531–8.
Landrø NI. Towards personalized treatment of depression: a candidate gene approach. Scand J Psychol. 2014;55:219–24.
Funding
Aristotle University Research Committee Grant no 88228 to Professor N. Raikos.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no conflict of interest.
Ethical approval
Not applicable; only data collected in the process of a routine medico-legal investigation ordered by the legal authorities are presented in this case report.
Informed consent
As above.
Rights and permissions
About this article
Cite this article
Goulas, A., Raikos, N., Krokos, D. et al. Fatal intoxication with antidepressants: a case with many culprits. Forensic Sci Med Pathol 14, 225–228 (2018). https://doi.org/10.1007/s12024-018-9960-3
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12024-018-9960-3