What breed of dog is this?
What are you doing when the dog acts out?
What have you tried to stop this?
Have you discussed over the counter meds with your vet?
Thank you for that information. I would like to direct you to sites for training and separation anxiety so you can work with him to become more stable to be left alone, in the end meds alone will not be enough and if you can do the training in conjunction he will get better faster.
With the training, the clicker cost about 3.00 or less so it is not expensive, watch the videos so you can see how it is done.
for over the counter meds melatonin has been known to help and I will direct you to a site that will tell you side effects and dosing.
Clicker training/positive method training