Question

final exam
you must score at least 80% to earn your certificate of completion. a failing score will result in course failure and forfeiture of your course fee—no refunds will be issued.

which class of drug can cause drowsiness, visual impairment, mental confusion, and weaving in one’s lane even at lower doses?
○ antihistamines
○ amphetamines
○ opiates (e.g., morphine, heroin, codeine)

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Explanation:

Antihistamines (especially first-generation ones) commonly cause sedation, visual issues, confusion, and impaired coordination even at lower doses, which aligns with the described symptoms. Amphetamines are stimulant drugs that increase alertness, so they do not cause drowsiness. Opiates primarily cause respiratory depression, pain relief, and sedation but the specific combination of visual impairment and weaving (coordination issues) at lower doses is more characteristic of antihistamines.

Answer:

Antihistamines