Therapeutic level of phenytoin is A.0 to 9 mgpr ml B.10 to 19 mg pr ml ???
Medscape ref:-The total phenytoin reference range varies by age, as follows:
Children and adults: 10-20 µg/mL
Neonates: 8-15 µg/mL
Toxic phenytoin levels are defined as greater than 30 µg/mL.
Lethal levels are defined as greater than 100 µg/mL.
The reference range of free phenytoin is 1-2.5 µg/mL.
Katzung page 404 10_19 microgramper ml
Any solid ref??