---
kind: "section"
citation: "21 C.F.R. § 522.2063"
title: "21"
number: "522.2063"
heading: "Pyrilamine."
url: "https://uscodex.org/cfr/21/522.2063"
---

# §522.2063. Pyrilamine.

- (a) **Specifications.** Each milliliter of solution contains 20 milligrams (mg) of pyrilamine maleate.
- (b) **Sponsors.** See sponsor numbers in [§ 510.600(c)](/cfr/21/510.600.md?p=c) of this chapter for uses in [paragraph (c)](#c) of this section.
  - (1) **No.** 000061 for use as in paragraph [(c)(1)(i)](#c-1-i), (2), and (3) of this section.
  - (2) **No.** 061133 for use as in paragraph [(c)(1)(ii)](#c-1-ii), (2), and (3) of this section.
- (c) **Conditions of use—**
  - (1) **Amount.**
    - (i) **Horses, 40 to 60 mg per 100 pounds (lbs) body weight; foals, 20 mg/100 lbs body weight.** Administer by intramuscular, subcutaneous, or intravenous injection. Dosage may be repeated every 6 to 12 hours whenever necessary.
    - (ii) **Horses, 40 to 60 mg/100 lbs body weight; foals, 20 mg/100 lbs body weight.** Administer by slow intravenous injection. Dosage may be repeated every 6 to 12 hours if necessary.
  - (2) **Indications for use.** It is intended for treating horses in conditions in which antihistaminic therapy may be expected to lead to alleviation of some signs of disease.
  - (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.

## Notes

### Amendments

[79 FR 16195, Mar. 25, 2014, as amended at 84 FR 8974, Mar. 13, 2019]

### Authority

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

### Source

Source: 40 FR 13858, Mar. 27, 1975, unless otherwise noted.

### Amendments

[79 FR 16195, Mar. 25, 2014, as amended at 84 FR 8974, Mar. 13, 2019]