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 of labeling changes for an existing metformin hydrochloride extended-release product; no clinical trial data or efficacy evidence is reported.
FDA supplemental approval of labeling changes for metformin hydrochloride extended-release tablets; this is a regulatory action record, not a clinical trial, and does not contain efficacy or safety data.
FDA supplemental approval of labeling changes for metformin hydrochloride; this is a regulatory action, not a clinical trial, and does not report efficacy or comparative benefit data.
FDA supplemental approval for labeling changes to an established metformin extended-release product; does not contain clinical trial data or efficacy evidence.