Phencyclidine is a common drug of abuse that can be taken orally, intravenously, or by inhalation. We describe a massive overdose of phencyclidine in a patient who swallowed a plastic bag containing the drug. Quantitative serum phencyclidine levels remained persistently elevated for several weeks. On hospital day 20, a plastic bag was passed via the rectum. Subsequently, the patient's serum phencyclidine levels fell in accordance with previously described pharmacokinetics. The patient rapidly recovered neurologic function. Persistently elevated serum drug levels should suggest continued drug absorption from a gastrointestinal deposit. We propose that colonoscopy and esophagogastroduodenoscopy be performed early in this setting.
(Arch Intern Med. 1992;152:859-860)
Young JD, Crapo LM. Protracted Phencyclidine Coma From an Intestinal Deposit. Arch Intern Med. 1992;152(4):859–860. doi:10.1001/archinte.1992.00400160145029
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