Phenytoin
Dilantin, Dilantin Infatab, Phenytoin Infatab, Phenytek, and generics
Anticonvulsant, class Ib antiarrhythmic
| D | 2 | Yes | Yes | Yes |
| Key |
- Chewable tabs (Dilantin Infatab and generics): 50 mg; may contain saccharin
- Extended release caps:
- Dilantin: 30, 100 mg
- Phenytek: 200, 300 mg
- Generics: 100, 200, 300 mg
- Oral suspension (Dilantin and generics): 125 mg/5 mL (240 mL); contains ≤0.6% alcohol and sodium benzoate
- Injection: 50 mg/mL (2, 5 mL); contains alcohol and sodium benzoate
There's more to see -- the rest of this topic is available only to subscribers.
Citation
Hughes, Helen K., and Lauren K. Kahl, editors. "Phenytoin." Harriet Lane Handbook, 23rd ed., Elsevier, 2024. Harriet Lane, www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309540/2/Phenytoin.
Phenytoin. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook. Elsevier; 2024. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309540/2/Phenytoin. Accessed September 7, 2026.
Phenytoin. (2024). In Hughes, H. K., & Kahl, L. K. (Eds.), Harriet Lane Handbook (23rd ed.). Elsevier. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309540/2/Phenytoin
Phenytoin [Internet]. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook. Elsevier; 2024. [cited 2026 September 07]. Available from: https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309540/2/Phenytoin.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Phenytoin
ID - 309540
ED - Hughes,Helen K,
ED - Kahl,Lauren K,
BT - Harriet Lane Handbook
UR - https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309540/2/Phenytoin
PB - Elsevier
ET - 23
DB - Harriet Lane
DP - Unbound Medicine
ER -

Harriet Lane Handbook

