Regulations last checked for updates: Feb 06, 2026

Title 21 - Food and Drugs last revised: Dec 18, 2026
§ 862.3380 - Ethosuximide test system.

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

(b) Classification. Class II.

authority: 21 U.S.C. 351,360,360c,360e,360j,360
source: 52 FR 16122, May 1, 1987, unless otherwise noted.
cite as: 21 CFR 862.3380