Adult and Children 6 years and older: Given orally at 10 mg per day. There was no additional benefit seen in increasing dose of Cetirizine HCl (Benadryl One) to 20 mg.
Or as prescribed by the physician.
Hepatic Impairment (patients with liver problems or diseases): The dose should be reduced to half their usual dose per day.
Renal Impairment (patients with kidney problems or diseases): The dose should be reduced to half their usual dose per day.
Seasonal Rhinitis: It is recommended that Cetirizine hydrochloride (Benadryl One) be given at the beginning of hay fever season when pollens are still few.
Cetirizine hydrochloride (Benadryl One) may be administered with or without food as it will not affect absorption of the drug.
What should the patient do if they miss a dose: Continue medication based on dosage and/or consult the doctor.
                                
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