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Methemoglobinemia as a biomarker of dapsone-induced mania severity
Romain Colle1, Abd El Kader Ait Tayeb1, Pierre Mesdom2
1Service Hospitalo-Universitaire de Psychiatrie de Bicêtre, Hôpitaux Universitaires Paris-Sud, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Le Kremlin Bicêtre, F-94275, France; INSERM UMR-1178, CESP, "Depression and Antidepressants" team, Faculté de Médecine Paris-Sud, Université Paris Sud, France.
Background:
The underlying mechanism involved in dapsone-induced mania remains unknown.
Methods:
We report the case of a 54-year-old man with a dapsone-induced mania.
Results:
The maximum of manic symptoms was correlated with the maximum of methemoglobinemia and mania decreased concomitantly with the methemoglobinemia level.
Limitations:
This is a single case.
Conclusions:
This case shows that dapsone-induced mania severity is correlated with methemoglobinemia level, leading for the first time to the hypothesis of a physiopathological mechanism by which dapsone could induce mania.
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