---
kind: "section"
citation: "21 C.F.R. § 520.38a"
title: "21"
number: "520.38a"
heading: "Albendazole suspension."
url: "https://uscodex.org/cfr/21/520.38a"
---

# §520.38a. Albendazole suspension.

- (a) **Specifications.** Each milliliter of suspension contains 45.5 milligrams (mg) (4.55 percent) or 113.6 mg (11.36 percent) albendazole.
- (b) **Sponsor.** See No. 054771 in [§ 510.600](/cfr/21/510.600.md) of this chapter.
- (c) **Related tolerances.** See [§ 556.34](/cfr/21/556.34.md) of this chapter.
- (d) **Special considerations.** See [§ 500.25](/cfr/21/500.25.md) of this chapter.
- (e) **Conditions of use—**
  - (1) **Cattle.** Administer 11.36 percent suspension:
    - (i) **Amount.** 4.54 mg/pound (lb) body weight (10 mg/kilogram (kg)) as a single oral dose using dosing gun or dosing syringe.
    - (ii) **Indications for use.** For removal and control of adult liver flukes (Fasciola hepatica); heads and segments of tapeworms (Moniezia benedeni and M. expansa); adult and 4th stage larvae of stomach worms (brown stomach worms including 4th stage inhibited larvae (Ostertagia ostertagi), barberpole worm (Haemonchus contortus and H. placei), small stomach worm (Trichostrongylus axei)); adult and 4th stage larvae of intestinal worms (thread-necked intestinal worm (Nematodirus spathiger and N. helvetianus), small intestinal worm (Cooperia punctata and C. oncophora)); adult stages of intestinal worms (hookworm (Bunostomum phlebotomum), bankrupt worm (Trichostrongylus colubriformis), nodular worm (Oesophagostomum radiatum)); adult and 4th stage larvae of lungworms (Dictyocaulus viviparus).
    - (iii) **Limitations.** Do not slaughter within 27 days of last treatment. Do not use in female dairy cattle of breeding age: Do not administer to female cattle during first 45 days of pregnancy or for 45 days after removal of bulls.
  - (2) **Sheep.** Administer 4.45 or 11.36 percent suspension:
    - (i) **Amount.** 3.4 mg/lb body weight (7.5 mg/kg) as a single oral dose using dosing gun or dosing syringe.
    - (ii) **Indications for use.** For removal and control of adult liver flukes (Fasciola hepatica and Fascioloides magna); heads and segments of common tapeworms (Moniezia expansa) and fringed tapeworm (Thysanosoma actinioides); adult and fourth stage larvae of stomach worms (brown stomach worm (Ostertagia circumcinta and Marshallagia marshalli), barberpole worm (Haemonchus contortus), small stomach worm (Trichostrongylus axei)); adult and fourth stage larvae of intestinal worms (thread-necked intestinal worm (Nematodirus spathiger and N. filicollis), Cooper's worm (Cooperia oncophora), bankrupt worm (Trichostrongylus colubriformis), nodular worm (Oesophagostomum columbianum), and large-mouth bowel worm (Chabertia ovina)); adult and larval stages of lungworms (Dictyocaulus filaria).
    - (iii) **Limitations.** Do not slaughter within 7 days of last treatment. Do not administer to ewes during first 30 days of pregnancy or for 30 days after removal of rams.
  - (3) **Goats.** Administer 11.36 percent suspension:
    - (i) **Amount.** 4.54 mg/lb body weight (10 mg/kg) as a single oral dose using dosing gun or dosing syringe.
    - (ii) **Indications for use.** For the treatment of adult liver flukes (Fasciola hepatica) in nonlactating goats.
    - (iii) **Limitations.** Do not slaughter within 7 days of last treatment. Do not administer to does during the first 30 days of pregnancy or for 30 days after removal of bucks.

## Notes

### Amendments

[73 FR 11027, Feb. 29, 2008. Redesignated at 78 FR 66264, Nov. 5, 2013, as amended at 79 FR 28816, May 20, 2014]

### Authority

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

### Source

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

### Amendments

[73 FR 11027, Feb. 29, 2008. Redesignated at 78 FR 66264, Nov. 5, 2013, as amended at 79 FR 28816, May 20, 2014]