subchapter_subject: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_code: "520"
part_subject: "ORAL DOSAGE FORM NEW ANIMAL DRUGS"
subpart_code: "B"
subpart_subject: "Specific Administrative Rulings and Decisions"
section_number: "520.1341"
section_subject: "Megestrol."
cfr_reference: "21 CFR 520.1341"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 500 to 599"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
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(a)Specifications. Each tablet contains 5 or 20 milligrams of megestrol acetate.
(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter.
(c)Conditions of use in dogs—(1) Amount. Administer orally, intact, or crushed and mixed with food as follows:
(i)For the postponement of estrus by proestrus treatment: 1 milligram per pound of body weight per day for 8 days.
(ii)For the postponement of estrus by anestrus treatment: 0.25 milligram per pound of body weight per day for 32 days.
(iii)For alleviation of false pregnancy: 1 milligram per pound of body weight per day for 8 days.
(2)Indications for use. For the postponement of estrus and the alleviation of false pregnancy in female dogs.
(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.