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Reversible agranulocytosis due to meprobamate
Postgraduate Medical Journal
|June 1, 1986
Abstract:
A 52 year old man admitted to hospital in a toxic state, was found to have agranulocytosis, which recovered when an analgesic containing meprobamate was stopped. The patient was known to have had similar symptoms 9 months previously when the drug was first used, thereby demonstrating an idiosyncratic reaction to meprobamate.
Insights
A patient experienced agranulocytosis, a severe drop in white blood cells, after taking meprobamate. Symptoms resolved upon drug discontinuation, indicating an idiosyncratic drug reaction.
Area of Science:
- Pharmacology
- Hematology
- Toxicology
Background:
- Meprobamate is a commonly prescribed anxiolytic and sedative.
- Agranulocytosis is a rare but serious adverse drug reaction characterized by a severe reduction in neutrophils.
Observation:
- A 52-year-old male patient presented with a toxic state and was diagnosed with agranulocytosis.
- The patient had a similar episode nine months prior, coinciding with the initial use of meprobamate.
Findings:
- Discontinuation of the meprobamate-containing analgesic led to the recovery of the patient's white blood cell count.
- This clinical course strongly suggests an idiosyncratic adverse reaction to meprobamate.
Implications:
- Highlights the importance of considering idiosyncratic drug reactions in unexplained hematological abnormalities.
- Underscores the need for vigilant monitoring of patients on meprobamate for potential blood dyscrasias.
- Suggests a potential hypersensitivity mechanism underlying meprobamate-induced agranulocytosis.