Drug-induced methemoglobinemia is a well-known phenomenon as well as induction by poppers (alcylnitrites substance group). Usually, suspicion is thrown in the right direction by a thorough medical history and environmental survey. But if intoxication is unintended and happens within the very private environment diagnosis might be very tricky. We report on an unusual case of accidental intoxication with probably contaminated tablets which were bought in the darknet. Finally, diagnosis was made by blood gas analysis' methemoglobine values.
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