Ralfate Oral Sucralfate Phenytoin
ModerateTaking Ralfate (Sucralfate) at the same time as other medicines can lower how much of those medicines your body absorbs, so they may work less well. Phenytoin is one of the medicines affected. The others include fluoroquinolone antibiotics such as Ciprofloxacin and Norfloxacin, Tetracycline, Ketoconazole, Sulpiride, Digoxin, Warfarin, Theophylline, Levothyroxine, Quinidine and H2 antagonists.
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.