Description
Indications
Pharmacology
Pharmacokinetics: Cetirizine 10 mg achieves peak plasma concentrations of 257 mcg/L within one hour of administration (980 mcg/L in children). Food does not affect the extent of absorption, but it may slightly reduce the rate. Peak blood levels 0.3 micrograms/ml are reached between thirty & sixty minutes after administration of 10 mg dose of Cetirizine. Its plasma half-life is approximately 11 hours. Absorption is very consistent from one subject to the next. Its renal clearance is 30 ml/minute and the excretion half-life is approximately nine hours.
Dosage & Administration
- Adults and Children 6 years and older: 1 tablet or 2 teaspoonfuls daily (or 1 teaspoonful twice daily).
- Children 2-6 years: 1 teaspoonful once daily or 1/2 teaspoonful twice daily.
- Children 6 months to 2 years : 1/2 teaspoonful once daily. The dose in children 12-23 months of age can be increased to a maximum dose as 1/2 teaspoonful every 12 hours.
Cetirizine injectable dosage form: Cetirizine is a single use injectable product for intravenous administration only. The recommended dosage regimen is once every 24 hours as needed for treatment of acute urticaria. Administer Cetirizine as an intravenous push over a period of 1 to 2 minutes. Cetirizine is not recommended in pediatric patients less than 6 years of age with impaired renal or hepatic function.
- Adults and adolescents 12 years of age and older: The recommended dosage is 10 mg administered by intravenous injection.
- Children 6 to 11 years of age: The recommended dosage is 5 mg or 10 mg depending on symptom severity administered by intravenous injection.
- Children 6 months to 5 years of age: The recommended dosage is 2.5 mg administered by intravenous injection.
Interaction
Contraindications
Side Effects
Pregnancy & Lactation
Precautions & Warnings
Use in Special Populations
Pediatric Use: The safety of Acitrin has been demonstrated in pediatric patients aged 6 months to 5 years.
Elderly use: The clearance of Acitrin is reduced in elderly patients, but only in proportion to the decrease in creatinine clearance.
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