Basic Information

Drug ID DDPD00794 ...
Drug Name Primidone
Molecular Weight 218.2518
Molecular Formula C12H14N2O2
CAS Number 125-33-7
SMILES CCC1(C(=O)NCNC1=O)C1=CC=CC=C1
External Links
DRUGBANK DB00794
PubChem Compound 4909
PDR 775
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Log P 0.91 - 0.91 - HANSCH,C ET AL. (1995)
Melting Point 281.5 281.5 PhysProp
Water Solubility 500.0 mg/L 500 mg/L YALKOWSKY,SH & DANNENFELSER,RM 1992)
Log S -2.64 - -2.64 - ADME Research, USCD

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Reference
Bioavailability 80.0 % 80 % PO, oral; DRUGBANK
C Max 2700.0 ng/ml 2.7±0.4 ug/ml Oral single dose; DRUGBANK
T Max 3.0 h 2-4 h PO, oral; DRUGBANK
T Max 3.8 h 0.5-7 h Oral single dose; DRUGBANK
Clearance 1.8 L/h 30.0 ml/min DRUGBANK
Volume of Distribution 0.65 L/kg 0.5-0.8 L/kg DRUGBANK
Half-life 14.5 h 7-22 h adults; DRUGBANK
Half-life 8.0 h 5-11 h Children; DRUGBANK
Half-life 44.0 h 8-80 h Neonates; DRUGBANK
Toxicity LD50 1500.0 mg/kg 1500.0 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Toxicity LD50 280.0 mg/kg 280.0 mg/kg PO, oral; mouse; DRUGBANK
Toxicity LD50 240.0 mg/kg 240.0 mg/kg Intraperitoneal, IP; Rattus, Rat; DRUGBANK
Toxicity LD50 332.0 mg/kg 332.0 mg/kg Intraperitoneal, IP; mouse; DRUGBANK
Eliminate Route 76.8 % 72.9-80.6 % Urinary excretion; DRUGBANK
Protein Binding 12.2 % 10.78-13.7 % DRUGBANK

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for neonates 25.0 mg/kg/day 25 mg/kg/day PO, oral Mysoline primidone PDR
Max dose for infants 2000.0 mg/day 2000 mg/day PO, oral Mysoline primidone PDR
Max dose for infants 25.0 mg/kg/day 25 mg/kg/day PO, oral Mysoline primidone PDR
Max dose for infants 1000.0 mg/kg/day 1000 mg/kg/day PO, oral Mysoline primidone PDR
Max dose for children 2000.0 mg/day 2000 mg/day PO, oral Mysoline primidone PDR
Max dose for adolescents 2000.0 mg/day 2000 mg/day PO, oral Mysoline primidone PDR
Max dose for elderly 2000.0 mg/day 2000 mg/day PO, oral Mysoline primidone 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