{"data":{"id":"us/21-cfr-610.17","jurisdiction":"us","citation":"21 CFR 610.17","heading":"Permissible combinations.","body":"Licensed products may not be combined with other licensed products either therapeutic, prophylactic or diagnostic, except as a license is obtained for the combined product. Licensed products may not be combined with nonlicensable therapeutic, prophylactic, or diagnostic substances except as a license is obtained for such combination.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER F—BIOLOGICS","PART 610—GENERAL BIOLOGICAL PRODUCTS STANDARDS","Subpart B—General Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"cbc153c1384bf959f8abef4b7f869d5083c4dd3b0fe703554084f22d1a4c958f","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-610.16","next":"us/21-cfr-610.18"},"notice":"GroundRules: Original legal text. Not legal advice."}