PHENYTOIN AND SULFINPYRAZONE
Some limited evidence indicates that phenytoin levels may be markedly increased by sulfinpyrazone. Fosphenytoin, a prodrug of phenytoin, may interact similarly.
Warn the patient to monitor for indicators of phenytoin toxicity (blurred vision, nystagmus, ataxia or drowsiness). It would seem advisable to monitor phenytoin levels.
Warn the patient to monitor for indicators of phenytoin toxicity (blurred vision, nystagmus, ataxia or drowsiness). It would seem advisable to monitor phenytoin levels.