---
kind: "section"
citation: "21 C.F.R. § 556.222"
title: "21"
number: "556.222"
heading: "Doramectin."
url: "https://uscodex.org/cfr/21/556.222"
---

# §556.222. Doramectin.

- (a) **Acceptable daily intake (ADI).** The ADI for total residue of doramectin is 0.75 µg/kg of body weight per day.
- (b) **Tolerances.** The tolerances for doramectin (marker residue) are:
  - (1) **Cattle.**
    - (i) **Liver (target tissue)—** 300 ppb.
    - (ii) **Muscle—** 30 ppb.
  - (2) **Swine.** Liver (target tissue): 160 ppb.
- (c) **Related conditions of use.** See §§ [522.770](/cfr/21/522.770.md), [522.772](/cfr/21/522.772.md), and [524.770](/cfr/21/524.770.md) of this chapter.

## Notes

### Amendments

[84 FR 32993, July 11, 2019, as amended at 88 FR 16549, Mar. 20, 2023]

### Authority

Authority: 21 U.S.C. 342, 360b, 371.

### Source

Source: 84 FR 32993, July 11, 2019, unless otherwise noted.

### Amendments

[84 FR 32993, July 11, 2019, as amended at 88 FR 16549, Mar. 20, 2023]