Cetirizine Hydrochloride IP 5 mg
Temporarily relieves these symptoms due to hay fever or other upper respiratory allergies:
- Runny Nose
- Itchy, Watery Eyes
- Itching Of The Nose Or Throat
Absorption: Cetirizine was rapidly absorbed with a time to maximum concentration (Tmax) of approximately 1 hour following oral administration of syrup in adults.
Metabolism: Cetirizine is metabolized to a limited extent by oxidative O-dealkylation to a metabolite with negligible antihistaminic activity. 70% of the administered radioactivity was recovered in the urine and 10% in the feces.
Distribution: The mean plasma protein binding of Cetirizine is 93%, independent of concentration in the range of 25–1000 ng/mL, which includes the therapeutic plasma levels observed.
Elimination: The mean elimination half-life in 146 healthy volunteers across multiple pharmacokinetic studies was 8.3 hours and the apparent total body clearance for Cetirizine was approximately 53 mL/min.
Mechanism of action
There was a small decrease in the clearance of Cetirizine caused by a 400-mg dose of theophylline; it is possible that larger theophylline doses could have a greater effect.
- Cetirizine Dihydrochloride is contraindicated in those patients with a known hypersensitivity to it or any of its ingredients or hydroxyzine.
- Use not recommended in pregnant and lactating mothers until and unless advised by the doctor.
- Difficult breathing
- Swelling of your face, lips, tongue or throat
- Ask a doctor before use if you have liver or kidney disease. Your doctor should determine if you need a different dose.
- Ask a doctor or pharmacist before use if you are taking tranquilizers or sedatives.
- In clinical trials, the occurrence of somnolence has been reported in some patients taking Cetirizine Dihydrochloride; due caution should therefore be exercised when driving a car or operating potentially dangerous machinery.