Gastric Support Antacid Chews By Funky Unicorn are intended to help minimize gastric irritation at the immediate time of stress by helping to reduce gastric pH levels. The recommended amount of chews and frequency will vary by the weight of your horse with detailed instructions on every package. Gastric Chews can be used with any current gastric regimens but should not replace a prescribed treatment regimen for gastric ulcers. Available in mint, chews are safe for USEF/FEI competitions.