Question

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 ones lane even at lower doses?
○ antihistamines
○ amphetamines
○ opiates (e.g., morphine, heroin, codeine)

Explanation:

Antihistamines, particularly first-generation ones, are well-known for causing central nervous system depression effects like drowsiness, blurred vision, mental confusion, and impaired motor coordination (which leads to weaving in a lane) even at lower doses. Amphetamines are stimulants that increase alertness, while opiates primarily cause sedation, pain relief, and respiratory depression but are less associated with the specific combination of visual impairment and lane weaving at low doses compared to antihistamines.

Answer:

Antihistamines