Basic Information

Drug ID DDPD00706 ...
Drug Name Tamsulosin
Molecular Weight 408.512
Molecular Formula C20H28N2O5S
CAS Number 106133-20-4
SMILES CCOC1=CC=CC=C1OCCN[C@H](C)CC1=CC(=C(OC)C=C1)S(N)(=O)=O
External Links
DRUGBANK DB00706
PubChem Compound 129211
PDR 2893
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Melting Point 230.0 230 FDA Label

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Factor Reference
Absorption 90.0 % 90 % PO, oral; fasting; DRUGBANK
AUC 175.0 ng.h/ml 151-199 ng.h/ml PO, oral; DRUGBANK
AUC 498.5 ng.h/ml 440-557 ng.h/ml PO, oral; DRUGBANK
Bioavailability 100.0 % 100.0 % PO, oral; Male, men; normal,healthy; The Pharmacological Basis of Therapeutics
C Max 4.2 ng/ml 3.1-5.3 ng/ml PO, oral; DRUGBANK
C Max 3.1 ng/ml 2.5-3.6 ng/ml PO, oral; DRUGBANK
C Max 16.0 ng/ml 16±5 ng/ml Oral single dose; extended release formulation; normal,healthy; The Pharmacological Basis of Therapeutics
T Max 4.5 h 4-5 h PO, oral; fasting; DRUGBANK
T Max 6.5 h 6-7 h PO, oral; food; DRUGBANK
T Max 5.3 h 5.3±0.7 h Oral single dose; extended release formulation; normal,healthy; The Pharmacological Basis of Therapeutics
Clearance 2.9 L/h 2.88 L/h DRUGBANK
Clearance 0.0372 L/h/kg 0.62±0.31 ml/min/kg normal,healthy;  Female, women; hydrolysis; hydrolysis; Elderly ↓ ;RD, renal impairment, Renal disease,including uremia ↓ ; The Pharmacological Basis of Therapeutics
Clearance 0.0372 L/h/kg 0.62 ml/min/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Volume of Distribution 16.0 L 16.0 L intravenous injection, IV; DRUGBANK
Volume of Distribution 0.20 L/kg 0.20±0.06 L/kg normal,healthy;  Female, women; hydrolysis; hydrolysis; The Pharmacological Basis of Therapeutics
Volume of Distribution 0.21 L/kg 0.21 L/kg intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Half-life 14.9 h 14.9±3.9 h fasting; DRUGBANK
Half-life 6.0 h 5-7 h elimination half-life; normal,healthy; DRUGBANK
Half-life 11.0 h 9-13 h normal,healthy; DRUGBANK
Half-life 14.5 h 14-15 h patients; DRUGBANK
Half-life 6.8 h 6.8±3.5 h RD, renal impairment, Renal disease,including uremia ↑ ;Age ↑ ; The Pharmacological Basis of Therapeutics
Half-life 14.5 h ~14-15 h PO, oral; extended release formulation; The Pharmacological Basis of Therapeutics
Half-life 6.8 h 6.8 h intravenous injection, IV; human, homo sapiens; Human Intravenous Pharmacokinetic Dataset
Toxicity LD50 650.0 mg/kg 650.0 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Eliminate Route 76.0 % 76 % Urinary excretion; PO, oral; DRUGBANK
Eliminate Route 21.0 % 21 % Faeces excretion; PO, oral; DRUGBANK
Eliminate Route 12.7 % 12.7±3 % Urinary excretion; Male, men; normal,healthy; human, homo sapiens; Unchanged drug; The Pharmacological Basis of Therapeutics
Protein Binding 96.5 % 94-99 % DRUGBANK
Protein Binding 99.0 % 99±1 % Male, men; normal,healthy; human, homo sapiens; RD, renal impairment, Renal disease,including uremia ↑ ; The Pharmacological Basis of Therapeutics

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for adults 0.8 mg/day 0.8 mg/day PO, oral Flomax tamsulosin hydrochloride PDR
Max dose for elderly 0.8 mg/day 0.8 mg/day PO, oral Flomax tamsulosin 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