StacksVerified U.S. regulatory reference

21 CFR §520.581

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Specifications. Each tablet contains 1 gram of dichlorophene.
  2. (b)Sponsor. See 023851 in § 510.600(c) of this chapter.
  3. (c)Required statement. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism, and before administering to weak or debilitated animals.
  4. (d)Conditions of use. Dogs—(1) Amount. Single dose of 1 tablet (1 gram of dichlorophene) for each 10 pounds of body weight.
    1. (2)Indications for use. It is used as an aid in the removal of tapeworms (Taenia pisiformis and Dipylidium caninum).
    2. (3)Limitations. Withhold solid foods and milk for at least 12 hours prior to medication and for 4 hours afterward.