Cetirizine hydrochlorideProduct ingredient for Cetirizine

Name
Cetirizine hydrochloride
Drug Entry
Cetirizine

Cetirizine, also commonly known as Zyrtec, is an orally active second-generation histamine H1 antagonist proven effective in the treatment of various allergic symptoms, such as sneezing, coughing, nasal congestion, hives, and other symptoms 1, 2.

One of the most common uses for this drug is for a condition called allergic rhinitis. The prevalence of allergic rhinitis in the United States is about 15% according to physician diagnoses, and up to 30%, according to self-reported nasal symptoms. Allergic rhinitis is associated with multiple missed or unproductive days at work and school, problems with sleep, and other difficulties with day to day activities for many individuals 3. Furthermore, some antihistamine agents that are used to treat this condition cause undesirable, sedating effects 4.

Cetirizine is one of the first second-generation H1 antihistamines (SGAHs) formulated to selectively inhibit the H1 receptor without sedating effects 2.

Accession Number
DBSALT001214
Structure
Synonyms
Cetirizine dihydrochloride / Cetirizine HCl
UNII
64O047KTOA
CAS Number
83881-52-1
Weight
Average: 461.81
Monoisotopic: 460.1087258
Chemical Formula
C21H27Cl3N2O3
InChI Key
PGLIUCLTXOYQMV-UHFFFAOYSA-N
InChI
InChI=1S/C21H25ClN2O3.2ClH/c22-19-8-6-18(7-9-19)21(17-4-2-1-3-5-17)24-12-10-23(11-13-24)14-15-27-16-20(25)26;;/h1-9,21H,10-16H2,(H,25,26);2*1H
IUPAC Name
2-(2-{4-[(4-chlorophenyl)(phenyl)methyl]piperazin-1-yl}ethoxy)acetic acid dihydrochloride
SMILES
Cl.Cl.OC(=O)COCCN1CCN(CC1)C(C1=CC=CC=C1)C1=CC=C(Cl)C=C1
ChemSpider
49830
ChEBI
3562
ChEMBL
CHEMBL1607273
Wikipedia
Cetirizine
Predicted Properties
PropertyValueSource
Water Solubility0.0658 mg/mLALOGPS
logP2.98ALOGPS
logP0.86Chemaxon
logS-3.8ALOGPS
pKa (Strongest Acidic)3.58Chemaxon
pKa (Strongest Basic)7.74Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count5Chemaxon
Hydrogen Donor Count1Chemaxon
Polar Surface Area53.01 Å2Chemaxon
Rotatable Bond Count8Chemaxon
Refractivity106.87 m3·mol-1Chemaxon
Polarizability42.1 Å3Chemaxon
Number of Rings3Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleYesChemaxon