Basic Information

Drug ID DDPD00341 ...
Drug Name Cetirizine
Molecular Weight 388.888
Molecular Formula C21H25ClN2O3
CAS Number 83881-51-0
SMILES OC(=O)COCCN1CCN(CC1)C(C1=CC=CC=C1)C1=CC=C(Cl)C=C1
External Links
DRUGBANK DB00341
T3DB T3D2756
PubChem Compound 2678
PDR 2934
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Caco-2 Permeability 1.14 - 1.14 - https://core.ac.uk/download/pdf/76975249.pdf
Log P 2.8 - 2.8 - http://www.t3db.ca/toxins/T3D2756
Boiling Point 542.1 542.1 https://www.lookchem.com/Cetirizine-hydrochloride/
Melting Point 112.5 110-115 https://www.chemicalbook.com/ChemicalProductProperty_US_CB3440625.aspx
Water Solubility 101.0 mg/L 101 mg/L https://www.chemicalbook.com/ChemicalProductProperty_US_CB3440625.aspx
pKa 1.52 - 1.52,2.92,8.27 - https://www.researchgate.net/publication/42768947_Isolation_and_Characterization_of_Cetirizine_Degradation_Product_Mechanism_of_Cetirizine_Oxidation
pKa 2.92 - 1.52,2.92,8.27 - https://www.researchgate.net/publication/42768947_Isolation_and_Characterization_of_Cetirizine_Degradation_Product_Mechanism_of_Cetirizine_Oxidation
pKa 8.27 - 1.52,2.92,8.27 - https://www.researchgate.net/publication/42768947_Isolation_and_Characterization_of_Cetirizine_Degradation_Product_Mechanism_of_Cetirizine_Oxidation

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Factor Reference
Bioavailability 70.0 % >70 % The Pharmacological Basis of Therapeutics
C Max 311.0 ng/ml 311.0 ng/ml Tablet, PO, oral; Capsule, PO, Oral; normal,healthy; DRUGBANK
C Max 313.0 ng/ml 313±45 ng/ml Oral single dose; normal,healthy; The Pharmacological Basis of Therapeutics
T Max 0.90 h 0.9±0.2 h Oral single dose; normal,healthy; The Pharmacological Basis of Therapeutics
Metabolic 70.0 % 70 % Urinary excretion; DRUGBANK
Metabolic 10.0 % 10 % Faeces excretion; DRUGBANK
Clearance 3.2 L/h ~53 ml/min Total clearance; Renal metabolism; DRUGBANK
Clearance 0.0444 L/h/kg 0.74±0.19 ml/min/kg apparent clearance; normal,healthy; Male, men;  Female, women; Children ↑ ;Elderly ↓ ;hepatopathy,LD ↓ ;RD, renal impairment, Renal disease,including uremia ↓ ; The Pharmacological Basis of Therapeutics
Volume of Distribution 0.44 L/kg 0.44±0.19 L/kg Apparent volume of distribution; DRUGBANK
Volume of Distribution 0.58 L/kg 0.58±0.16 L/kg Apparent volume of distribution; normal,healthy; Male, men;  Female, women; The Pharmacological Basis of Therapeutics
Half-life 8.3 h 8.3 h elimination half-life; DRUGBANK
Half-life 9.4 h 9.42±2.4 h normal,healthy; Male, men;  Female, women; Children ↓ ;chronic liver disease ↑ ;RD, renal impairment, Renal disease,including uremia ↑ ;Age ↑ ; The Pharmacological Basis of Therapeutics
Toxicity LD50 365.0 mg/kg 365.0 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Toxicity TDLo 50.0 mg/kg 50.0 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Toxicity TDLo 0.10 mg/kg 0.1 mg/kg PO, oral; mouse; DRUGBANK
Toxicity LDLo 138.0 mg/kg 138.0 mg/kg Intraperitoneal, IP; mouse; DRUGBANK
Eliminate Route 77.5 % 70-85 % Urinary excretion; PO, oral; DRUGBANK
Eliminate Route 11.5 % 10-13 % Faeces excretion; PO, oral; DRUGBANK
Eliminate Route 70.9 % 70.9±7.8 % Urinary excretion; normal,healthy; human, homo sapiens; Unchanged drug; The Pharmacological Basis of Therapeutics
Protein Binding 93.0 % 93 % plasma proteins; DRUGBANK
Protein Binding 98.8 % 98.8±0.8 % normal,healthy; human, homo sapiens; The Pharmacological Basis of Therapeutics

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for infants 2.5 mg/day 2.5 mg/day PO, oral;intravenous injection, IV; Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 10.0 mg/day 10 mg/day PO, oral;intravenous injection, IV; Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 5.0 mg/day 5 mg/day PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.5 mg/day 2.5 mg/day intravenous injection, IV Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 5.0 mg/day 5 mg/day PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 0.25 mg/kg 0.25 mg/kg PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.5 mg/day 2.5 mg/day intravenous injection, IV Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 5.0 mg/day 5 mg/day PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 0.25 mg/kg 0.25 mg/kg PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for children 2.5 mg/day 2.5 mg/day intravenous injection, IV Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for adolescents 10.0 mg/day 10 mg/day PO, oral;intravenous injection, IV; Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for adolescents 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for adults 10.0 mg/day 10 mg/day PO, oral;intravenous injection, IV; Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for adults 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for geriatric 10.0 mg/day 10 mg/day PO, oral;intravenous injection, IV; Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for geriatric 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for geriatric 5.0 mg/day 5 mg/day PO, oral Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for geriatric 10.0 mg/day 10 mg/day intravenous injection, IV Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR
Max dose for geriatric 2.0 drop/day 2 drop/day ophthalmic administration Cetirizine Hydrochloride Tablets cetirizine hydrochloride PDR

Drug Property Radar Chart

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Note: Center: Q1-1.5*IQR, Edge: Q3+1.5*IQR; Q1: Quantile 1, Q3: Quantile 3, IQR: Q3-Q1