eMedicine Specialties > Pediatrics: Cardiac Disease and Critical Care Medicine > Toxicology
Toxicity, Hallucinogens - PCP: Follow-up
Updated: Apr 14, 2009
Follow-up
Further Inpatient Care
- Admit the patient who has ingested phenylcyclohexyl piperidine (PCP), also known as phencyclidine, to an ICU if evidence of hyperthermia, seizure activity, or rhabdomyolysis is present.
Further Outpatient Care
- Refer the patient for drug rehabilitation.
- Because of its long-lasting side effect of inducing or unmasking psychopathologic symptoms, continued outpatient therapy including prolonged use of tranquilizers may be necessary for patients after PCP intoxication.21
Complications
- The usual street dose of PCP is 1-6 mg and results in mild intoxication. Larger ingestions (6-10 mg) can cause toxic psychoses and signs of sympathetic hyperactivity, including hypertension, rigidity, hyperthermia, tachycardia, and seizure. Very large doses (>200 mg) can result in death. Deaths from the direct effects of PCP intoxication are related to hyperthermia, renal failure, DIC, or rhabdomyolysis.
Patient Education
- For excellent patient education resources, visit eMedicine's Substance Abuse Center. Also, see eMedicine's patient education articles Club Drugs and Substance Abuse. The Drug Enforcement Administration Web site is an excellent updated resource.
Miscellaneous
Medicolegal Pitfalls
- Toxicologic urine screening is not 100% specific or sensitive for phencyclidine (PCP) exposure. Diphenhydramine and dextromethorphan may produce false-positive results, and patients with negative test results may exhibit signs of acute PCP intoxication.
- Condition may be misdiagnosed as a psychiatric disorder; the medical staff may fail to diagnose PCP intoxication and to aggressively treat life-threatening conditions, such as hyperthermia, traumatic injuries, and rhabdomyolysis.
The authors and editors of eMedicine gratefully acknowledge the contributions of previous author Ryan J Petersen, MD, to the original writing and development of this article.
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Further Reading
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Follow-up: Toxicity, Hallucinogens - PCP