Concurrent administration of hydroxyzine with many analgesics will:

a. Antagonize the effects
b. Enhance the effects
c. Be contraindicated
d. Have no effect on the narcotic medications

b
Rationale: a. Hydroxyzine will enhance rather than antagonize.
b. Correct.
c. Because of its antihistamine-like effects, it is sometimes desirable to administer hydroxyzine with many narcotics.
d. Hydroxyzine will enhance the effects of many narcotics.