Which of the following is NOT a typical physical effect of heroin use?

• A. Constricted pupils
• B. Profuse sweating
• C. Slowed, slurred speech
• D. Dry mouth

Answer: (B)

Heroin, as an opioid, acts as a CNS depressant and produces signs centered on slowed body functions and alignment with the opioid effect. Constricted pupils are a classic sign of opioid use. Slowed, slurred speech results from overall slowed neural activity and motor control. Dry mouth occurs because saliva production decreases with opioid effects and dehydration can accompany use. Profuse sweating, however, is not a typical feature of heroin intoxication itself; sweating is more commonly associated with withdrawal, stimulant use, or other situations, but not a defining sign of active heroin use. So profuse sweating is the one that doesn’t fit as a typical physical effect of heroin use.