Section 520.1615 - Omeprazole(a)Specifications. Each gram of paste contains 0.37 gram omeprazole.(b)Sponsor. See No. 000010 in § 510.600(c) of this chapter.(c)Special considerations. When labeled for use as in paragraph (d)(2)(i) of this section, product labeling shall bear: "Federal law restricts this drug to use by or on the order of a licensed veterinarian."(d)Conditions of use in horses - (1)Amount.(i) For treatment of gastric ulcers, 1.8 milligrams per pound (mg/lb) of body weight (4 milligrams per kilogram (mg/kg)) once daily for 4 weeks. For prevention of recurrence of gastric ulcers, 0.9 mg/lb of body weight (2 mg/kg) once daily for at least an additional 4 weeks.(ii) For prevention of gastric ulcers using the premarked syringe, one dose per day for 8 or 28 days. Each dose delivers at least 1 mg/kg of body weight. Horses over 1,200 lb body weight should receive two doses per day.(2)Indications for use.(i) For treatment and prevention of recurrence of gastric ulcers in horses and foals 4 weeks of age and older.(ii) For prevention of gastric ulcers in horses.(3)Limitations. Do not use in horses intended for human consumption.69 FR 13220, Mar. 22, 2004, as amended at 71 FR 59374, Oct. 10, 2006; 84 FR 39183, Aug. 9, 2019