21 CFR § 522.1870 - Praziquantel.

---
identifier: "/us/cfr/t21/s522.1870"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 522.1870 - Praziquantel."
title_number: 21
title_name: "Food and Drugs"
section_number: "522.1870"
section_name: "Praziquantel."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "522"
part_name: "IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 360b."
regulatory_source: "40 FR 13858, Mar. 27, 1975, unless otherwise noted."
cfr_part: "522"
---


# 522.1870 Praziquantel.

(a) *Specifications.* Each milliliter (mL) of solution contains 56.8 milligrams of praziquantel.

(b) *Sponsors.* See Nos. 058198 and 061133 in § 510.600(c) of this chapter.

(c) *Conditions of use*—(1) *Dogs*—(i) *Amount.* Administer by subcutaneous or intramuscular injection for dogs and puppies 5 pounds (lb) and under, 0.3 mL; for 6 to 10 lb, 0.5 mL; for 11 to 25 lb, 1.0 mL; if over 25 lb, 0.2 mL/5 lb body weight to a maximum of 3 mL.

(ii) *Indications for use.* For removal of canine cestodes *Dipylidium caninum, Taenia pisiformis,* and *Echinococcus granulosus,* and removal and control of canine cestode *Echinococcus multilocularis.*

(iii) *Limitations.* Federal law restricts the drug to use by or on the order of a licensed veterinarian.

(2) *Cats*—(i) *Amount.* Administer by subcutaneous or intramuscular injection for cats and kittens under 5 lb, 0.2 mL; 5 to 10 lb, 0.4 mL; 11 lb and over, 0.6 mL maximum.

(ii) *Indications for use.* For removal of feline cestodes *Dipylidium caninum* and *Taenia taeniaeformis.*

(iii) *Limitations.* Federal law restricts the drug to use by or on the order of a licensed veterinarian.

[46 FR 10464, Feb. 3, 1981, as amended at 47 FR 6617, Feb. 16, 1982; 58 FR 42853, Aug. 12, 1993; 67 FR 79853, Dec. 31, 2002; 78 FR 17868, Mar. 25, 2013; 81 FR 67151, Sept. 30, 2016; 84 FR 8974, Mar. 13, 2019; 86 FR 14820, Mar. 19, 2021]