{"data":{"id":"us/21-cfr-335.3","jurisdiction":"us","citation":"21 CFR 335.3","heading":"Definitions.","body":"As used in this part:\n(a) Antidiarrheal. A drug that can be shown by objective measurement to treat or control (stop) the symptoms of diarrhea.\n(b) Diarrhea. A condition characterized by increased frequency of loose, watery stools (three or more daily) during a limited period (24 to 48 hours), usually with no identifiable cause.\n(c) Travelers' diarrhea. A subset of diarrhea occurring in travelers that is most commonly caused by an infectious agent.","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 335—ANTIDIARRHEAL DRUG PRODUCTS FOR OVER-THE-COUNTER HUMAN USE","Subpart A—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":"8899695035074ed083b773d168956a9840bb938ef27f005f0c0279fb9aa3dc49","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-335.1","next":"us/21-cfr-335.10"},"notice":"GroundRules: Original legal text. Not legal advice."}