Taking lorazepam with other drugs that make you sleepy or slow your breathing can cause dangerous side effects or death. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, prescription cough medicine, or medicine for depression or seizures.
Tell your doctor about all your other medicines, especially:
probenecid, aminophylline, or theophylline;
any other medicines to treat anxiety;
medicine to treat mental illness;
seizure medicine; or
medicine that contains an antihistamine (such as sleep medicine, cold or allergy medicine).
This list is not complete. Other drugs may interact with lorazepam, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
 Lorazepam drug interactions (more detail)
