What Drugs Should Not Be Taken With Propranolol?

What Drugs Should Not Be Taken With Propranolol? What drugs should not be taken with propranolol? A person should not take propranolol with other beta-blockers, ACE inhibitors, calcium channel blockers, and alpha-blockers, as the combined effect can lower the heart rate to an unsafe level and could trigger a heart attack. How good is propranolol