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 methadone hydrochloride REMS; establishes regulatory requirements but does not report clinical trial outcomes or efficacy evidence.
FDA supplemental approval of methadone hydrochloride under REMS, a regulatory action affecting drug access and safety monitoring requirements, not a clinical efficacy study.
FDA supplemental approval of methadone hydrochloride REMS establishes risk management requirements; does not report clinical trial efficacy or comparative outcomes.