Which substance can cause increased salivation as a symptom of intoxication?

Increased salivation can be a notable symptom of intoxication, particularly associated with the use of PCP (phencyclidine). PCP is a dissociative drug that can lead to a variety of reactions in the body, including excessive salivation due to its effects on the central nervous system and autonomic functions. The drug can disrupt normal physiological regulation, leading to hyperactive secretions, which manifests as increased salivation.

Contrastingly, the other substances listed typically do not cause increased salivation. Heroin, an opioid, often leads to decreased salivation and overall sedation. Cocaine is a stimulant that may also cause decreased salivation due to its stimulating effects on the sympathetic nervous system. Alcohol can cause varied effects depending on the quantity consumed, but is not typically associated with increased salivation as a primary symptom. Understanding these physiological responses to different substances is crucial for recognizing signs of intoxication effectively in a clinical setting.