{"data":{"id":"us/21-cfr-349.16","jurisdiction":"us","citation":"21 CFR 349.16","heading":"Ophthalmic hypertonicity agent.","body":"The active ingredient and its concentration in the product is as follows: Sodium chloride, 2 to 5 percent.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER D—DRUGS FOR HUMAN USE","PART 349—OPHTHALMIC DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE","Subpart B—Active Ingredients"],"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":"d419021d69e4f19f7cf9d9657c04bf7fa6353a5ee8144277031823d8d7dd4901","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-349.14","next":"us/21-cfr-349.18"},"notice":"GroundRules: Original legal text. Not legal advice."}