21 C.F.R. § 520.531
Cythioate tablets.
Cite as 21 C.F.R. § 520.531 (2026)
(a)
Specifications.
Each tablet contains 30 or 90 milligrams (mg) cythioate.
(b)
Sponsors.
See sponsor numbers in § 510.600(c) of this chapter as follows:
(1) No. 058198 for use of 30- and 90-mg tablets.
(2) No. 054771 for use of the 30-mg tablet.
(c)
Conditions of use
—(1)
Amount.
30 milligrams cythioate per 20 pounds of body weight every third day or twice a week.
(2)
Indications for use.
Dogs, for control of fleas.
(3)
Limitations.
Federal law restricts this drug to use by or on the order of a licensed veterinarian.
[49 FR 5615, Feb. 14, 1984, as amended at 59 FR 26942, May 25, 1994; 67 FR 78355, Dec. 24, 2002; 79 FR 28819, May 20, 2014; 86 FR 14818, Mar. 19, 2021]
- Cross-references to the CFR
- 510.600