In general, lower doses of 25 mg or 50 mg last about six hours ... Metoprolol succinate extended-release tablets: 3 to 7 ...

Metoprolol has a half-life (when half of the drug is eliminated from the body) of three to seven hours. Lopressor (metoprolol ...

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 ...