
tolbutamide oral brand names and other generic formulations include:
Icn-Tolam Oral, Oribetic Oral, Orinase Oral
fosphenytoin inj brand names and other generic formulations include:
tolbutamide oral and fosphenytoin inj
tolbutamide oral increases levels of fosphenytoin inj by the drugs competing to be bound to protein and therefore possibly increasing the amount of the drugs in the blood.
tolbutamide oral and fosphenytoin inj
tolbutamide oral increases levels of fosphenytoin inj by plasma protein binding competition.
Check for more interactions with the Drug Interaction Checker
Drug Interaction Categories
Contraindicated
Never use this combination of drugs because of high risk for dangerous interaction
Serious
Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed
Significant
Potential for significant interaction (monitoring by your doctor is likely required)
Minor
Interaction is unlikely, minor, or nonsignificant