21 CFR 520.1802c
§ 520.1802c Piperazine-carbon disulfide complex with phenothiazine suspension.
United States · 21 CFR — Food and Drugs · Status: effective
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- Citation
- 21 CFR 520.1802c, § 520.1802c Piperazine-carbon disulfide complex with phenothiazine suspension, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87277
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Full text
(a) Specifications. Each fluid ounce contains 5 grams of piperazine-carbon disulfide complex and 0.83 gram of phenothiazine.
(b) Sponsor. See No. 054771 in § 510.600(c) of this chapter.
(c) Conditions of use in horses and ponies—(1) Amount. Administer 1 fluid ounce per 100 pounds of body weight by stomach tube or dose syringe after withholding feed overnight or for 8 to 10 hours.
(2) Indications for use. For removing ascarids (large roundworms, Parascaris equorum), bots (Gastrophilus spp.), small strongyles, and large strongyles (Strongylus spp.).
(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.