eCFR Reference Browser

---

title: "21 CFR §862.3350"

source: "https://www.ecfr.gov/current/title-21/section-862.3350"

title_number: "21"

volume_number: "8"

chapter_number: "Unknown"

subchapter_code: "H"

subchapter_subject: "MEDICAL DEVICES"

part_code: "862"

part_subject: "CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES"

subpart_code: "D"

subpart_subject: "Clinical Toxicology Test Systems"

section_number: "862.3350"

section_subject: "Diphenylhydantoin test system."

cfr_reference: "21 CFR 862.3350"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 800 to 1299"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

(a)Identification. A diphenylhydantoin test system is a device intended to measure diphenylhydantoin, an antiepileptic drug, in human specimens. Measurements obtained by this device are used in the diagnosis and treatment of diphenylhydantoin overdose and in monitoring levels of diphenylhydantoin to ensure appropriate therapy.

(b)Classification. Class II.

§862.3350 - Diphenylhydantoin test system.