Basic Information

Drug ID DDPD00590 ...
Drug Name Doxazosin
Molecular Weight 451.4751
Molecular Formula C23H25N5O5
CAS Number 74191-85-8
SMILES COC1=C(OC)C=C2C(N)=NC(=NC2=C1)N1CCN(CC1)C(=O)C1COC2=CC=CC=C2O1
External Links
DRUGBANK DB00590
PubChem Compound 3157
PDR 1849
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Log P 2.1 - 2.1 - https://pubchem.ncbi.nlm.nih.gov/compound/Doxazosin
Boiling Point 718.0 718 https://www.scbt.com/scbt/product/doxazosin-mesylate-77883-43-3
Melting Point 276.0 275-277 https://www.chemicalbook.com/ChemicalProductProperty_EN_CB3285710.htm
Water Solubility 0.8 % 0.8 % https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/019668s021lbl.pdf
pKa 6.52 - 6.52 - https://www.ebi.ac.uk/chembl/compound_report_card/CHEMBL707/

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Reference
Bioavailability 65.0 % 60-70 % DRUGBANK
T Max 2.5 h 2-3 h DRUGBANK
Clearance 0.0900 L/h/kg ~1-2 ml/min/kg DRUGBANK
Clearance 0.0960 L/h/kg 1.6 ml/min/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Volume of Distribution 1.5 L/kg 1.0-1.9 L/kg DRUGBANK
Volume of Distribution 1.3 L/kg 1.3 L/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Half-life 10.5 h 9-12 h elimination half-life; different study; DRUGBANK
Half-life 22.0 h 22 h elimination half-life; DRUGBANK
Half-life 10.0 h 10 h intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Toxicity LD50 1000.0 mg/kg >1000 mg/kg PO, oral; mouse; DRUGBANK
Eliminate Route 63.0 % 63 % Faeces excretion; PO, oral; intravenous injection, IV; DRUGBANK
Eliminate Route 9.0 % ~9 % Urinary excretion; PO, oral; intravenous injection, IV; DRUGBANK
Eliminate Route 5.0 % ~5 % Faeces excretion; Unchanged drug; DRUGBANK
Protein Binding 98.0 % ~98 % plasma proteins; DRUGBANK

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for adults 16.0 mg/day 16 mg/day PO, oral Cardura doxazosin mesylate PDR
Max dose for adults 8.0 mg/day 8 mg/day PO, oral Cardura doxazosin mesylate PDR
Max dose for elderly 16.0 mg/day 16 mg/day PO, oral Cardura doxazosin mesylate PDR
Max dose for elderly 8.0 mg/day 8 mg/day PO, oral Cardura doxazosin mesylate PDR

Drug Property Radar Chart

...

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