PAWS & PATCH Irritability Turf wars Aggression - dog supplements

I have a Dalmatian, and my neighbours have 4 Bernese Mountain Dogs. The dogs are separated in the adjoining garden by a 2m high fence and a proper 2m high tarp on my side. Still, my Dalmatian got so worked up that he developed Cushing's syndrome (he drinks almost 2-3 litres of water at once and then vomits very often). The vet also checked him out physically and confirmed it's all just down to excitement and territorial behaviour. Great product. Thanks.