Topirva 50 Topiramate Phenytoin
ModeratePhenytoin Sodium and Topiramate are listed together as medicines that can interact. The leaflet names topiramate among the medicines whose action may be affected when phenytoin is taken with them. This can change how well topiramate works, so the usual dose may not suit you once both are in use. If you take both, tell your doctor or pharmacist, and don't change or stop either one on your own.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.