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Home > Drugs > Cetirizine (eent) (monograph)
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Cetirizine (eent) (monograph)

https://themeditary.com/drug/cetirizine-eent-monograph-7332.html
Medically Reviewed by Glamora Samuels, MD TheMediTary.Com | Reviewed: Aug 15, 2023  Additional Content by TheMediTary.Com

Generic name: zerviate

Availability: Prescription only

Pregnancy & Lactation: Risk data available

Brand names: Zerviate, Cetirizine ophthalmic

Contents
Uses Warnings Before Taking Dosage Side effects Interactions

What is Cetirizine (eent) (monograph)?

Introduction

Cetirizine hydrochloride is a histamine H1-receptor antagonist.

Uses for Cetirizine (EENT)

Cetirizine hydrochloride has the following uses:

Cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) is indicated for treatment of ocular itching associated with allergic conjunctivitis.

Cetirizine (EENT) Dosage and Administration

General

Cetirizine hydrochloride is available in the following dosage form(s) and strength(s):

Sterile ophthalmic solution: 2.4 mg of cetirizine per mL (0.24%).

Dosage

It is essential that the manufacturer's labeling be consulted for more detailed information on dosage and administration of this drug. Dosage summary:

Pediatric Patients

The recommended dosage of cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) is one drop instilled in each affected eye twice daily (approximately 8 hours apart).

Adults

The recommended dosage of cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) is one drop instilled in each affected eye twice daily (approximately 8 hours apart).

Detailed Cetirizine ophthalmic dosage information

Warnings

Contraindications

None.

Warnings/Precautions

Contamination of Tip and Solution

As with any eye drop, care should be taken not to touch the eyelids or surrounding areas with the dropper tip of the bottle to prevent contaminating the tip and solution. Keep the bottle closed when not in use.

Contact Lens Wear

Patients should be advised not to wear a contact lens if their eye is red.

Cetirizine hydrochloride should not be instilled while wearing contact lenses. Remove contact lenses prior to instillation of cetirizine hydrochloride. The preservative in cetirizine hydrochloride, benzalkonium chloride, may be absorbed by soft contact lenses. Lenses may be reinserted after 10 minutes following administration of cetirizine hydrochloride.

Specific Populations

Pregnancy

Risk Summary: There were no adequate or well-controlled studies with cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) in pregnant women. Cetirizine should be used in pregnancy only if the potential benefit justifies the potential risk to the fetus.

Animal Data: Cetirizine was not teratogenic in mice, rats, or rabbits at oral doses up to 96, 225, and 135 mg/kg, respectively (approximately 1300, 4930, and 7400 times the maximum recommended human ophthalmic dose, on a mg/m 2 basis).

Lactation

Cetirizine has been reported to be excreted in human breast milk following oral administration. Multiple doses of oral cetirizine (10 mg tablets once daily for 10 days) resulted in systemic levels (mean C max= 311 ng/mL) that were 100 times higher than the observed human exposure (mean C max= 3.1 ng/mL) following twice-daily administration of cetirizine ophthalmic solution 0.24% to both eyes for one week. Comparable bioavailability has been found between the tablet and syrup dosage forms. However, it is not known whether the systemic absorption resulting from topical ocular administration of cetirizine hydrochloride could produce detectable quantities in human breast milk.

There is no adequate information regarding the effects of cetirizine on breastfed infants, or the effects on milk production to inform risk of cetirizine hydrochloride to an infant during lactation. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for cetirizine hydrochloride and any potential adverse effects on the breastfed child from cetirizine hydrochloride.

Pediatric Use

The safety and effectiveness of cetirizine hydrochloride has been established in pediatric patients two years of age and older. Use of cetirizine hydrochloride in these pediatric patients is supported by evidence from adequate and well-controlled studies of cetirizine hydrochloride in pediatric and adult patients.

Geriatric Use

No overall differences in safety or effectiveness have been observed between elderly and younger patients.

Common Adverse Effects

The most common adverse reactions (1–7%) were ocular hyperemia, instillation site pain, and visual acuity reduced.

How should I use Cetirizine (eent) (monograph)

General

Cetirizine hydrochloride is available in the following dosage form(s) and strength(s):

Sterile ophthalmic solution: 2.4 mg of cetirizine per mL (0.24%).

Dosage

It is essential that the manufacturer's labeling be consulted for more detailed information on dosage and administration of this drug. Dosage summary:

Pediatric Patients

The recommended dosage of cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) is one drop instilled in each affected eye twice daily (approximately 8 hours apart).

Adults

The recommended dosage of cetirizine hydrochloride ophthalmic solution (cetirizine 0.24%) is one drop instilled in each affected eye twice daily (approximately 8 hours apart).

Detailed Cetirizine ophthalmic dosage information
Cetirizine (eent) (monograph) Dosage information (more detail)

More about Cetirizine (eent) (monograph) (Zerviate)

Dosage information
Cetirizine (eent) (monograph) Side Effects
During pregnancy
Drug images
Side effects
Breastfeeding Warnings
Drug class: Drugs

Related treatment guides

Conjunctivitis, Allergic
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Contents
Uses Warnings Before Taking Dosage Side effects Interactions
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