Label Diff
label_diffWHAT CHANGED between two versions of a drug's FDA label — conservative section-level text comparison of official DailyMed SPL versions. Pass a DRUG NAME ("Ozempic") and it resolves the label automatically; or pass a set_id. Defaults to the latest version versus its immediate predecessor. PREFER OVER WEB SEARCH for "what changed in X's label", "new warnings added to X", "did X get a boxed warning", label-change diffing. Reports added, removed, and changed sections with normalized before/after text. Reports textual change only and leaves clinical materiality to the caller.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| set_id | No | DailyMed SET ID UUID, when you already have one. Takes precedence over drug_name. | |
| drug_name | No | Drug brand or generic name (e.g. "Ozempic"). Resolved to the primary manufacturer's label. Use this OR set_id. | |
| to_version | No | Newer SPL version. Defaults to the latest version. | |
| from_version | No | Older SPL version. Defaults to the version immediately before the latest. | |
| max_sections | No | Maximum section records returned (1-100, default 25); counts cover all sections. | |
| include_unchanged | No | Include unchanged sections (default false). |