For treatment of equine gastric ulcers, GASTROGARD (omeprazole) should be administered orally once-a day for 4 weeks at the recommended dosage of 1.8 mg omeprazole/lb body weight (4 mg/kg). For the prevention of recurrence of gastric ulcers, continue treatment for at least an additional 4 weeks by administering GASTROGARD at the recommended daily maintenance dose of 0.9 mg/lb (2 mg/kg).
GASTROGARD is recommended for use in horses and foals 4 weeks of age and older. The contents of one syringe will dose a 1250 lb (568 kg) horse at the rate of 1.8 mg omeprazole/lb body weight (4 mg/kg). For treatment of gastric ulcers, each weight marking on the syringe plunger will deliver sufficient omeprazole to treat 250 lb (114 kg) body weight. For prevention of recurrence of gastric ulcers, each weight marking will deliver sufficient omeprazole to dose 500 lb (227 kg) body weight.
To deliver GASTROGARD at the treatment dose rate of 1.8 mg omeprazole/lb body weight (4 mg/kg), set the syringe plunger to the appropriate weight marking according to the horses weight in pounds.
To deliver GASTROGARD at the dose rate of 0.9 mg/lb (2 mg/kg) to prevent recurrence of ulcers, set the syringe plunger to the weight marking corresponding to half of the horses weight in pounds.
To set the syringe plunger: 1) While holding plunger, turn the knurled ring on the plunger to the left and slide the knurled ring along the plunger shaft so that the side nearest the barrel is at the appropriate weight marking, aligning the arrows on the ring and plunger. 2) Lock the ring in place by making turns to the right. Ensure it is locked.
Make sure the horses mouth contains no feed. Remove the cover from the tip of the syringe, and insert the syringe into the horses mouth at the interdental space. Depress the plunger until stopped by the knurled ring. The dose should be deposited on the back of the tongue or deep into the cheek pouch. Care should be taken to ensure that the horse consumes the complete dose. Treated animals should be observed briefly after administration to ensure that part of the dose is not lost or rejected. If any of the dose is lost, re-dosing is recommended.
If, after dosing, the syringe is not completely empty, it may be reused on following days until emptied. Replace the cap after each use.
Store at 68 F-77 F (20-25 C). Excursions between 59 F-86 F (15-30 C) are permitted.