Basic Information

Drug ID DDPD00451 ...
Drug Name Levothyroxine
Molecular Weight 776.87
Molecular Formula C15H11I4NO4
CAS Number 51-48-9
SMILES N[C@@H](CC1=CC(I)=C(OC2=CC(I)=C(O)C(I)=C2)C(I)=C1)C(O)=O
External Links
DRUGBANK DB00451
PubChem Compound 5819
PDR 1177
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Log P 4.0 - 4.0 - DRUGBANK
Melting Point 235.5 235.5 PhysProp
Water Solubility 105.0 mg/L 0.105 mg/ml DRUGBANK

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Factor Reference
Absorption 60.0 % 40-80 % PO, oral; DRUGBANK
Half-life 156.0 h 6-7 day DRUGBANK
Half-life 36.0 h 1-2 day DRUGBANK
Toxicity LD50 20.0 mg/kg 20.0 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Eliminate Route 20.0 % 20 % Faeces excretion; Age ↓ ; DRUGBANK
Protein Binding 99.0 % >99 % plasma proteins; DRUGBANK

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for children 0.1 mg/day 100 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for children 0.025 mg/day 25 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for adolescents 0.1 mg/day 100 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for adolescents 0.025 mg/day 25 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for elderly 0.1 mg/day 100 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for elderly 0.025 mg/day 25 mcg/day PO, oral Thyrolar liotrix (T3;T4) PDR
Max dose for children 0.2 mg/day 200 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for children 0.3 mg/day 300 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for adolescents 0.2 mg/day 200 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for adolescents 0.3 mg/day 300 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for geriatric 0.2 mg/day 200 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for geriatric 0.3 mg/day 300 mcg/day PO, oral Tirosint levothyroxine sodium PDR
Max dose for children 120.0 mg/day 120 mg/day PO, oral Armour Thyroid thyroid PDR
Max dose for adolescents 120.0 mg/day 120 mg/day PO, oral Armour Thyroid thyroid PDR
Max dose for geriatric 120.0 mg/day 120 mg/day PO, oral Armour Thyroid thyroid 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