21 CFR 529.1186
§ 529.1186 Isoflurane.
United States · 21 CFR — Food and Drugs · Status: effective
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- Citation
- 21 CFR 529.1186, § 529.1186 Isoflurane, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87694
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Full text
(a) Specifications. The drug is a clear, colorless, stable liquid.
(b) Sponsors. See Nos. 010019, 017033, 054771, and 065085 in § 510.600(c) of this chapter.
(c) Conditions of use. Administer by inhalation:
(1) Amount—(i) Horses: For induction of surgical anesthesia: 3 to 5 percent isoflurane (with oxygen) for 5 to 10 minutes. For maintenance of surgical anesthesia: 1.5 to 1.8 percent isoflurane (with oxygen).
(ii) Dogs: For induction of surgical anesthesia: 2 to 2.5 percent isoflurane (with oxygen) for 5 to 10 minutes. For maintenance of surgical anesthesia: 1.5 to 1.8 percent isoflurane (with oxygen).
(2) Indications for use. For induction and maintenance of general anesthesia in horses and dogs.
(3) Limitations. Do not use in horses intended for human consumption. Federal law restricts this drug to use by or on the order of a licensed veterinarian.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.