This is for those who take
Metoprolol. There are two type of Metoprolol, Tartrate and Succinate. With Metoprolol Tartrate, you take it twice a day, usually 12 hours apart. Maximum plasma levels occur about an hour after taking in and it begins to be metabolized. Typically, the dose is reduced 50% every 4 to 5 hours. This is why it's taken twice a day. Metoprolol Succinate is the time release version. It's taken once a day and is slowly metabolized throughout a 24 hr. period.