A nurse teaches a client who plans to use nonprescription loratadine for allergic rhinitis. Which statement by the client indicates correct understanding?
1If one dose is ineffective, I can take additional tablets at short intervals until my nasal symptoms stop.
2I will use the labeled dose and ask about dosing if I have liver or kidney disease; extra doses can cause drowsiness.✓ Correct answer
3I should combine loratadine with a sedating antihistamine whenever itching persists despite the labeled dose.
4I can use loratadine for wheezing or throat swelling and wait for it to work before seeking emergency care.
Explanation
Loratadine should be taken only at the labeled or prescribed dose. Clients with liver or kidney disease should ask a clinician whether a different dose is needed, and taking more than directed can cause drowsiness. Extra doses or combining antihistamines without guidance increases adverse-effect risk. Loratadine is not a rescue treatment for bronchospasm or anaphylaxis.
Clinical reasoning Loratadine is a second-generation H1 antihistamine used for allergy symptoms. It is less sedating than many first-generation agents, but excess dosing can still cause drowsiness.
Decision rule Use the labeled dose, review liver or kidney disease with a clinician, and do not substitute an oral antihistamine for emergency treatment of airway symptoms.
Scenario 32-year-old commercial truck driver with seasonal allergic rhinitis starting loratadine 10 mg PO daily. Receiving outpatient teaching.
Second-generation antihistamine — A relatively peripherally selective H1 blocker used for allergic rhinitis and urticaria; loratadine is generally less sedating than first-generation agents.
Allergic rhinitis — An IgE-mediated upper-airway condition causing sneezing, rhinorrhea, and nasal or ocular itching; it is distinct from anaphylaxis or acute bronchospasm.