Behavioral Medicine – Substance Use Disorders Practice Test

Which route is NOT a documented route of PCP administration?

Transdermal patch Snorted Smoked Injected

Correct Answer:

Transdermal patch

Explanation:

The route not documented for PCP administration is the transdermal patch. PCP is typically used via inhalation (smoked), intranasal (snorted), or parenteral routes (injected). A transdermal patch would deliver the drug slowly through the skin, leading to gradual, unpredictable absorption and a much slower onset, which doesn’t align with the known patterns of PCP use and its rapid, dissociative effects. In practice, there are no established transdermal PCP formulations or widely recognized use via patches, whereas smoking, snorting, and injecting PCP are well documented ways people have used it.

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