Primary FDA-Approved Indications
Use primarily for nighttime allergy or cold symptoms in older children when non-sedating agents fail.
Seasonal/perennial allergic rhinitis with refractory nighttime symptoms
FDA ApprovedTransition to second-generation antihistamines once symptoms stabilize to minimize daytime cognitive effects.
Treatment Duration
Standard: Short bursts or bedtime dosing during flares
Evidence Sources
Cold symptoms with troublesome nocturnal cough/sneezing
FDA ApprovedAdjunct to saline, humidifier, and rest. Not recommended for routine daytime use in school-age children due to sedation.
Treatment Duration
Standard: ≤5 nights