Diazepam Was Part of Treatment After Antipsychotic-Associated Movement Symptoms During Alcohol Withdrawal

The medicine given later in a hospital course may be treating a complication of an earlier exposure.

What the supplied research shows

A case report described a man treated for alcohol-withdrawal symptoms with repeated chlorpromazine injections. He subsequently developed mutism, rigidity, immobility, tremor and drooling. After referral, treatment included benzhexol and intravenous diazepam; the movement symptoms resolved over the following ten days.

What it cannot establish

A single case with two treatments and a changing clinical course cannot isolate the contribution of diazepam or establish that the same symptoms always have the same cause. The report describes a suspected drug-related movement disorder rather than a controlled treatment comparison.

Forensic interpretation and case review

Build a chronological medication chart before assigning causation. Distinguish the presenting withdrawal syndrome, the later movement findings and the medicines used to address them. A positive benzodiazepine test obtained after treatment cannot establish that benzodiazepine exposure preceded the original symptoms. This case illustrates why treatment records and specimen collection times are essential to interpreting a hospital toxicology result.

Source and related reading

Source: supplied full-text paper, PMC8257062. Findings are paraphrased; the forensic discussion is an interpretation of the evidence.

Related: A Benzodiazepine-Positive Result After Emergency Sedation May Reflect Treatment Rather Than the Initial Overdose.