{"data":{"id":"us/21-cfr-522.2690","jurisdiction":"us","citation":"21 CFR 522.2690","heading":"Zinc gluconate.","body":"(a) Specifications. Each milliliter of solution contains 13.1 milligrams zinc as zinc gluconate neutralized to pH 7.0 with L-arginine.\n(b) Sponsor. See No. 011788 in § 510.600(c) of this chapter.\n(c) Conditions of use in dogs—(1) Amount. The volume injected into each testicle is based on testicular width as determined by measuring each testicle at its widest point using a metric scale (millimeter) caliper.\n(2) Indications for use. Intratesticular injection for chemical sterilization of 3- to 10-month-old male dogs.\n(3) Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS","PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"d94dd535122c7d308ba33f1bab42562e5c48e41a5773f96fd231a12e65404952","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-522.2680","next":"us/21-cfr-522.2694"},"notice":"GroundRules: Original legal text. Not legal advice."}