{"data":{"id":"us/21-cfr-862.3660","jurisdiction":"us","citation":"21 CFR 862.3660","heading":"Phenobarbital test system.","body":"(a) Identification. A phenobarbitol test system is a device intended to measure phenobarbital, an antiepileptic and sedative-hypnotic drug, in human specimens. Measurements obtained by this device are used in the diagnosis and treatment of phenobarbital use or overdose and in monitoring levels of phenobarbital to ensure appropriate therapy.\n(b) Classification. Class II.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 862—CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES","Subpart D—Clinical Toxicology Test Systems"],"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":"f752541626467c9a58a61ff5a36148f9920db9580018aa2ec7e82d5e8ca2c8b8","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-862.3652","next":"us/21-cfr-862.3670"},"notice":"GroundRules: Original legal text. Not legal advice."}