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Updated: Jun 20, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
Life threatening intracerebral hemorrhage with isometheptene mucate, dichlorophenazine and acetaminophen combination
1Legal Medicine Consultants, Seattle, WA, USA. JohnstonMDJD@aol.com
A 45 year old female with no stroke risk factors suffered a massive intracerebral hemorrhage (ICH) after ingesting Midrin--a combination of isometheptene mucate, dichlorophenazine and acetaminophen. Neuroimaging revealed no evidence of structural disease or underlying vasculopathy. This is the first reported case of isometheptene induced ICH in the absence of underlying cerebrovascular disease. Physicians must be aware of the potential for this complication, and inquire about the use of isometheptene in unexplained cerebral hemorrhages. Neurological communities in countries with nonprescription isometheptene should discourage unsupervised or excessive use of the drug.
A 45 year old female with no stroke risk factors suffered a massive intracerebral hemorrhage (ICH) after ingesting Midrin--a combination of isometheptene mucate, dichlorophenazine and acetaminophen. Neuroimaging revealed no evidence of structural disease or underlying vasculopathy. This is the first reported case of isometheptene induced ICH in the absence of underlying cerebrovascular disease. Physicians must be aware of the potential for this complication, and inquire about the use of isometheptene in unexplained cerebral hemorrhages. Neurological communities in countries with nonprescription isometheptene should discourage unsupervised or excessive use of the drug.
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