Fission Definition: Fission is the splitting of an atomic nucleus into two or more lighter nuclei accompanied by energy release. The original heavy atom is termed the parent nucleus and the lighter nuclei are daughter nuclei. By Anne Marie Helmenstine, Ph.D.
Release time. The primary difference between metoprolol succinate and metoprolol tartrate is the length of time that the drugs stay in your bloodstream. Metoprolol succinate will stay in a person's bloodstream for 24 complete hours. This means that the medication is a once per day pill.
The active substance metoprolol is employed either as metoprolol succinate or as metoprolol tartrate (where 100 mg metoprolol tartrate corresponds to 95 mg metoprolol succinate). The tartrate is an immediate-release and the succinate is an extended-release formulation.