Usual Adult Dose for Allergic Rhinitis:
5 to 10 mg orally once a day
-Maximum dose: 10 mg/day
-Some experts recommend: Patients over 65 years of age should start with 5 mg orally once a day.
Usual Adult Dose for Urticaria:
5 to 10 mg orally once a day
-Maximum dose: 10 mg/day
-Some experts recommend: Patients over 65 years of age should start with 5 mg orally once a day.
Uses:
-Relief of symptoms associated with perennial allergic rhinitis due to allergens (e.g., sneezing, rhinorrhea, postnasal discharge, nasal pruritus, ocular pruritus, tearing)
-Treatment of uncomplicated skin manifestations of chronic idiopathic urticaria
Usual Pediatric Dose for Allergic Rhinitis:
6 months to 2 years:
-Initial dose: 2.5 mg orally once a day
-Maintenance dose: 2.5 mg orally once to 2 times a day
-Maximum dose: 5 mg/day
2 to 5 years:
-Initial dose: 2.5 mg orally once a day
-Maintenance dose: 2.5 mg orally 2 times a day OR 5 mg orally once a day
-Maximum dose: 5 mg/day
6 years and older: 5 to 10 mg orally once a day
-Maximum dose: 10 mg/day
Usual Pediatric Dose for Urticaria:
6 months to 2 years:
-Initial dose: 2.5 mg orally once a day
-Maintenance dose: 2.5 mg orally once to 2 times a day
-Maximum dose: 5 mg/day
2 to 5 years:
-Initial dose: 2.5 mg orally once a day
-Maintenance dose: 2.5 mg orally 2 times a day OR 5 mg orally once a day
-Maximum dose: 5 mg/day
6 years and older: 5 to 10 mg orally once a day
-Maximum dose: 10 mg/day
Uses:
-Relief of symptoms associated with perennial allergic rhinitis due to allergens (e.g., sneezing, rhinorrhea, postnasal discharge, nasal pruritus, ocular pruritus, tearing) in patients 2 years and older
-Treatment of uncomplicated skin manifestations of chronic idiopathic urticaria in patients 6 months and older
 Detailed Zyrtec dosage information
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include extreme drowsiness, vision problems, agitation, feeling restless and then drowsy or tired, fast heartbeats, stomach pain, nausea, vomiting, trouble walking, or trouble swallowing or speaking.
