While there are no mediations specifically approved to treat depersonalization disorder, a number of medications generally used to treat depression and anxiety may help. Some examples that have been shown to relieve symptoms include fluoxetine (Prozac), clomipramine (Anafranil) and clonazepam (Klonopin).
I do not feel that a 911 call and Ativan are the only ways to deal with depersoalization. I would really suggest you discuss this problem with your physician as there are treatments and therapy avaiable to help with this disorder.
I wish you peace,
Kitt