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 a Risk Evaluation and Mitigation Strategy (REMS) for hydrocodone bitartrate and acetaminophen combination tablets across four dosage strengths.
FDA supplemental approval of a Risk Evaluation and Mitigation Strategy (REMS) for extended-release hydrocodone bitartrate; this is a regulatory action, not a clinical efficacy study.
FDA supplemental REMS approval for hydrocodone bitartrate and acetaminophen fixed-dose combinations; establishes risk mitigation requirements but does not report clinical efficacy or safety trial outcomes.