Spencer began suffering from anxiety last fall, when my mom started adult daycare (he had been spending all his days with her while I worked). For the first time in his life, he found himself alone most of the day. I found a neighbor who was willing to let him out daily, but his days were still mostly spent alone. I thought the anxiety was just due to separation issues, but about the same time, he started exhibiting some other bizarre behaviors & was eventually diagnosed with canine cognitive dysfunction (doggy alzheimers). The vet said it was hard to tell if his anxiety was due to the separation or the CCD. So, he started on Anipryl. After about one month on it, I did start to notice changes. He's been on it several months now & the change is remarkable. He now only has occasional separation anxiety, and it is mild. Spencer too has been anxious all his life about alot of things, and some of those anxieties have also improved and some have stayed the same, but the new anxiety has definitely improved. I'm not sure if the medication you mention is similar to the Anipryl or not. The downside is that it is expensive - $103.00/month but, as long as it is working, it is worth it. I hope Lightning feels better soon! 
