A Patient Takes Antacids, Cimetidine (Tagamet), and Phenytoin (Dilantin)

A patient takes antacids, cimetidine (Tagamet) , and phenytoin (Dilantin) . The health care provider prescribes a benzodiazepine for anxiety. Which drug interactions would the nurse anticipate? Select all that apply.

A) Increased plasma level of benzodiazepine related to cimetidine therapy
B) Increased absorption of the benzodiazepine if taken with the antacid
C) Euphoria and disinhibition associated with phenytoin therapy
D) Serotonin syndrome associated with cimetidine use
E) Potential phenytoin toxicity