Have a stray dog from a Greek shelter. She is super sweet and well-behaved, but the separation fears were very extreme. Yelps, barks. As I go very early outside the home, first issues with neighboring. Then I read the reviews here and thought I try it once. And really ... from the three weeks ..erste time no barking in the morning now after 3.5 weeks, she has stopped completely. Really highly recommended ... she likes the chewable tablets also like ...