Isoniazid vs Phenytoin

Interacting Drugs
Isoniazid
vs
Phenytoin
Security Level
Moderate, Consider therapy modification
Mechanism
Phenytoin: Isoniazid may increase the serum concentration of Phenytoin.
Management
Consider alternatives. If concomitant therapy cannot be avoided, monitor for increased phenytoin concentrations/effects with isoniazid initiation/dose increase, or decreased concentrations/effects with isoniazid discontinuation/dose decrease.

Subscribe for latest updates

Subscribe to our e-mail newsletter to receive updates.

No comments yet.

Post Review about Isoniazid vs Phenytoin