It's important to understand precautions and warnings with propranolol prior to taking the drug. For example, tell your healthcare provider if you smoke, drink alcohol, or are about to undergo surgery. Other precautions and warnings with propranolol to be aware of include the risk of serious allergic reactions and the importance of letting your doctor know if you are pregnant or thinking of becoming pregnant.
Tell your healthcare provider about all other medicines that you are currently taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.