Drug Overdose Management · Pharmacology

What is the primary risk associated with the administration of Physostigmine in an undifferentiated overdose?

  1. It may cause severe hepatotoxicity
  2. It can cause seizures or cardiac arrest in TCA co-ingestion
  3. It has a very short half-life and requires a continuous drip
  4. It is only available as an oral formulation
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Correct answer: It can cause seizures or cardiac arrest in TCA co-ingestion

Physostigmine is used for pure anticholinergic toxicity, but it can be dangerous if the patient has also ingested drugs that delay cardiac conduction. In such cases, it can cause asystole or seizures.

Difficulty: Medium Question 11 of 20

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