(a) Specifications. (1) For trichlorfon: O,O-Dimethyl 2,2,2-trichloro-1-hydroxyethyl phosphonate.
(1) For trichlorfon: O,O-Dimethyl 2,2,2-trichloro-1-hydroxyethyl phosphonate.
(2) For atropine: Atropine N.F.
(b) Sponsor. See No. 054771 in Sec. 510.600(c) of this chapter.
(c) Conditions of use in mice--(1) Amount. Administer 1.67 grams of trichlorfon and 7.7 milligrams of atropine per liter continuously for 7 to 14 days as the sole source of drinking water.
(1) Amount. Administer 1.67 grams of trichlorfon and 7.7 milligrams of atropine per liter continuously for 7 to 14 days as the sole source of drinking water.
(2) Indications for use. For the treatment of Syphacia obvelata (pinworm) in laboratory mice.
(3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. [79 FR 28832, May 20, 2014] Sec. 520.2520b Trichlorfon boluses.
(a) Specifications. Each bolus contains either 7.3, 10.9, 14.6, or 18.2 g of trichlorfon.
(b) Sponsor. See No. 054771 in Sec. 510.600(c) of this chapter.
(c) Conditions of use in horses--(1) Amount. 18.2 milligrams per pound of body weight, except for strongyles use 36.4 milligrams per pound of body weight.
(1) Amount. 18.2 milligrams per pound of body weight, except for strongyles use 36.4 milligrams per pound of body weight.
(2) Indications for use. For horses for removal of bots (Gastrophilus nasalis, Gastrophilus intestinalis), large strongyles (Strongylus vulgaris), small strongyles, large roundworms (ascarids, Parascaris equorum), and pinworms (Oxyuris equi).
(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. [45 FR 48127, July 18, 1980. Redesignated and amended at 79 FR 28833, May 20, 2014] Sec. 520.2520c Trichlorfon granules.
(a) Specifications. Each package contains either 18.2 or 36.4 g of trichlorfon.
(b) Sponsor. See No. 054771 in Sec. 510.600(c) of this chapter.
(c) Conditions of use in horses--(1) Amount. 18.2 milligrams per pound of body weight.
(1) Amount. 18.2 milligrams per pound of body weight.
(2) Indications for use. For horses for removal of bots (Gastrophilus nasalis, Gastrophilus intestinalis), large roundworms (ascarids, Parascaris equorum), and pinworms (Oxyuris equi).
(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. [45 FR 48128, July 18, 1980. Redesignated and amended at 79 FR 28833, May 20, 2014] Sec. 520.2520d Trichlorfon, phenothiazine, and piperazine dihydrochloride powder.
(a) Specifications. Each 54.10 grams (1.91 ounces) of water dispersible powder contains 9.10 grams of trichlorfon, 6.25 grams of phenothiazine, and the equivalent of 20.0 grams of piperazine base (as piperazine dihydrochloride).
(b) Sponsor. See No. 054771 in Sec. 510.600(c) of this chapter. [48 FR 2757, Jan. 21, 1983. Redesignated and amended at 79 FR 28833, May 20, 2014]
Editorial Note: At 79 FR 28833, May 20, 2014, Sec. 520.2520d was amended in part by redesignating paragraph (e) as (c). This action could not be performed because paragraph (e) did not exist.