Medically reviewed by Mary Choy, PharmD Key Takeaways Propranolol and metoprolol are both beta-blockers used to treat heart conditions.Propranolol can be used for anxiety and migraine prevention, ...

Metoprolol tartrate is taken up to four times a day because it works quickly. Metoprolol succinate is taken once a day and works over 24 hours. Both forms treat high blood pressure and angina, but ...