NDAORALTABLET
Approved
Dec 1995
Lifecycle
LOE Approaching
Competitive Pressure
30/100
Clinical Trials
5
Data completeness
3/8 — Basic
ZYRTEC ALLERGY (cetirizine hydrochloride) by Dr. Reddy's Laboratories is mechanism of actions cetirizine, a human metabolite of hydroxyzine, is an antihistamine; its principal effects are mediated via selective inhibition of peripheral h 1 receptors. First approved in 1995.
Drug data last refreshed 19h ago · AI intelligence enriched 1w ago
AI summarySynthesized from FDA + DailyMed + ClinicalTrials.gov data
ZYRTEC ALLERGY (cetirizine hydrochloride) is a second-generation antihistamine approved in 1995 that selectively inhibits peripheral H1 receptors to treat allergic conditions. It is administered orally as a tablet and has minimal central nervous system penetration, reducing sedation compared to first-generation antihistamines. Cetirizine works by blocking histamine-mediated allergic responses without significant anticholinergic or antiserotonergic activity.
LOE Approaching
Product is in late-stage market lifecycle with moderate competitive pressure (30/100); team focus shifting toward defense and value articulation ahead of LOE.
Mechanism of Action
Mechanism of Actions Cetirizine, a human metabolite of hydroxyzine, is an antihistamine; its principal effects are mediated via selective inhibition of peripheral H 1 receptors. The antihistaminic activity of cetirizine has been clearly documented in a variety of animal and human models. In vivo…
Indications
Indication data is being enriched from DailyMed and FDA labeling. Check back soon for approved therapeutic uses.
Clinical Trials (5)
Phase 2 Study IV QUZYTTIR™ (Cetirizine Hydrochloride Injection) vs V Diphenhydramine
Started Mar 2020
34 enrolled
Oncology Patients Receiving Chemotherapy
Cetirizine Hydrochloride Tablets, 10 mg Bioequivalence Study of Dr.Reddy's Under Fed Condition
Started Jan 2006
30 enrolled
Healthy
Cetirizine Hydrochloride Tablets, 10 mg Bioequivalence Study of Dr.Reddy's Under Fasting Condition
Started Jan 2006
30 enrolled
Healthy
To Demonstrate the Relative Bioavailability of Cetirizine Hydrochloride/Pseudoephedrine Hydrochloride 5 mg/120 mg Extended Release (ER) Tablets Under Fasting Conditions
Started Jul 2005
40 enrolled
Allergies
To Demonstrate the Relative Bioavailability of Cetirizine Hydrochloride/Pseudoephedrine Hydrochloride 5 mg/120 mg Extended Release (ER) Tablets Under Fed Conditions
Started Jun 2005
40 enrolled
Allergies
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Data Sources
- Drug label: DailyMed / FDA
- Clinical trials: ClinicalTrials.gov
- Patent data: FDA Orange Book
- Spending data: CMS Medicare
The information on this page is for informational purposes only and should not be used as a substitute for professional medical advice. Drug information is sourced from FDA, DailyMed, and other government databases. Adverse event data from FAERS does not establish causation. Always consult a healthcare professional for medical decisions.