Metoprolol tartrate and metoprolol succinate are two ... Toprol XL is the extended-release formulation taken once daily. This tablet is comprised of a variety of metoprolol pellets that are ...

Following informed consent, patients were randomized (in strata according to time of onset, diabetes status, sex, and age) to the treatment arm (up to three 5-mg boluses of metoprolol tartrate at ...