21 C.F.R. § 520.38a
Albendazole suspension.
Cite as 21 C.F.R. § 520.38a (2026)
(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 of this chapter.
(c)
Related tolerances.
See § 556.34 of this chapter.
(d)
Special considerations.
See § 500.25 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.
[73 FR 11027, Feb. 29, 2008. Redesignated at 78 FR 66264, Nov. 5, 2013, as amended at 79 FR 28816, May 20, 2014]
- Cross-references to the CFR
- 500.25510.600556.34