Respiratory and allergy classes

PTCB PTCE
Medications
Select all that apply
Difficulty 3 of 5

Question

Which drugs should a pharmacy technician place in the antihistamine section of a class reference list? Select all that apply.

Diphenhydramine✓ Correct

This drug appears in the antihistamine group.
Ipratropium✗ Incorrect

This drug appears in the bronchodilator group.
Loratadine✓ Correct

This drug appears in the antihistamine group.
Tiotropium✗ Incorrect

This drug appears in the bronchodilator group.
Oxybutynin✗ Incorrect

This drug appears in the bladder antimuscarinic group.

Answer

A. Diphenhydramine · C. Loratadine

Rationale

The reference groups diphenhydramine and loratadine as antihistamines. It places the other drugs in separate categories.

RememberDiphenhydramine and loratadine are antihistamines.

Sources

Sources marked “Adapted from” are licensed under CC BY 4.0. We changed the material: its facts are rewritten into an original question, answer options and rationale. The original authors and publishers do not endorse SwipeExam.

Adapted from Open RN Nursing Pharmacology, 2nd edition: Chapter 4 Autonomic Nervous System Open RN (Chippewa Valley Technical College) · License: CC BY 4.0 · Retrieved November 2, 2026 · ANS Neuroreceptors and Effects › Parasympathetic Nervous System · 2nd edition, 2023

Last verified: November 5, 2026 2 independent automated checks Question ptcb-m-00131, version 1

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