---
kind: "section"
citation: "21 C.F.R. § 520.1156"
title: "21"
number: "520.1156"
heading: "Imidacloprid."
url: "https://uscodex.org/cfr/21/520.1156"
---

# §520.1156. Imidacloprid.

- (a) **Specifications.** Each chewable tablet contains 7.5 or 37.5 milligrams (mg) imidacloprid.
- (b) **Sponsor.** See No. 058198 in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter.
- (c) **Conditions of use in dogs—**
  - (1) **Amount.** Administer daily one 7.5-mg chewable tablet to dogs weighing 4 to 22 pounds (lb) or one 37.5-mg chewable table to dogs weighing 23 to 110 lb.
  - (2) **Indications for use.** Kills adult fleas and is indicated for the treatment of flea infestations on dogs and puppies 10 weeks of age and older and weighing 4 lb or greater.
  - (3) **Limitations.** Do not give to puppies younger than 10 weeks of age or to dogs weighing less than 4 lb. Do not give more than one tablet a day.

## Notes

### Amendments

[80 FR 18775, Apr. 8, 2015, as amended at 86 FR 14818, Mar. 19, 2021]

### Authority

Authority: 21 U.S.C. 360b.

### Source

Source: 40 FR 13838, Mar. 27, 1975, unless otherwise noted.

### Amendments

[80 FR 18775, Apr. 8, 2015, as amended at 86 FR 14818, Mar. 19, 2021]