Phytonics Gastri Comp naturally contributes to a healthy stomach function in dogs, cats and horses. Gastri Comp has a stomach strengthening influence and protects the stomach lining, by supporting the acid/base balance. Gastri Comp can be used when the appetite is diminished, when dogs are nauseous, or when horses suck air. Phytonics Gastri Comp (animal feed supplement) is available as 100g for dogs/cats and as 750g package for horses. The balance is the same, only the size of the spoon is different. When complaints persist, visit the vet.