Ulcergard (Omeprazole) Oral Paste for Horses Catalog Horse Ulcergard (Omeprazole) Oral Paste for Horses Description Oral Paste for Horses Ulcergard is the first and only product used to prevent Equine Gastric Ulcer Syndrome (EGUS) also known as stomach ulcers in horses. Rates Please contact us for current pricing and availability. Request Availability