Basic Information

Drug ID DDPD09216 ...
Drug Name Tolfenamic acid
Molecular Weight 261.704
Molecular Formula C14H12ClNO2
CAS Number 13710-19-5
SMILES CC1=C(Cl)C=CC=C1NC1=CC=CC=C1C(O)=O
External Links
DRUGBANK DB09216
PubChem Compound 610479

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Log P 5.17 - 5.17 - US-EPA
Melting Point 207.0 207 Deriv of anthranilic acid, related structurally to mefenamic and flufenamic acids. (1966)
Water Solubility 1000.0 mg/L 1 mg/ml 'MSDS'
pKa 5.11 - 5.11 - Mefenamic acid: analytical profile. (2005)

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Factor Reference
AUC 31500.0 ng.h/ml 13-50 mcg.h/ml increasing doses ↑ ; DRUGBANK
Bioavailability 75.0 % 75 % DRUGBANK
C Max 11100.0 ng/ml 11.1 mcg/ml PO, oral; DRUGBANK
T Max 1.5 h 0.94-2.04 h DRUGBANK
Metabolic 20.0 % 20 % Liver metabolism; Urinary excretion; DRUGBANK
Clearance 0.16 L/h/kg 0.142-0.175 L/h/kg DRUGBANK
Clearance 4.3 L/h/kg 72.4 ml/min/kg intravenous injection, IV; DRUGBANK
Clearance 0.14 L/h/kg 2.37 ml/min/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Volume of Distribution 2.5 L/kg 1.79-3.2 L/kg intravenous injection, IV; DRUGBANK
Volume of Distribution 0.33 L/kg 0.33 L/kg Steady state volume of distribution; DRUGBANK
Volume of Distribution 0.16 L/kg 0.16 L/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Half-life 10.8 h 8.01-13.50 h DRUGBANK
Half-life 6.1 h 6.1 h intravenous injection, IV; DRUGBANK
Half-life 2.2 h 2.15 h intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Toxicity LD50 600.0 mg/kg 200-1000 mg/kg DRUGBANK
Eliminate Route 8.8 % <8.8 % Urinary excretion; Unchanged drug; DRUGBANK
Protein Binding 99.7 % 99.7 % DRUGBANK

Maximum Dosage

Not Available

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