Beta blockers, carbamazepine, and certain benzodiazepines may interact negatively with Cardizem. Drug interactions could occur that may increase your risk for side effects or decrease the effectiveness of Cardizem. To help prevent drug interactions with Cardizem, make sure to tell your healthcare provider about all other medicines you are taking before starting treatment.
Cardizem® (diltiazem hydrochloride) can potentially interact with a number of other medicines. Some of the medicines that may lead to Cardizem drug interactions include: