Following this puts new work involving it at the top of your briefing, with a note saying why it is there. Links are taken from the source record, never inferred.
FDA supplemental approval for labeling changes to an existing metoprolol succinate extended-release tablet formulation; this is a regulatory action record, not a clinical evidence evaluation.
FDA approval of a fixed-dose combination syrup; this is a regulatory action confirming manufacturing and quality standards, not a clinical efficacy determination.