OK, I've taken a few things over the years in the antidepressant category.
I have found that most of them did a good job on pain, but over time things sometimes stop being effective. I don't know why.
As far as I know, none of them have the 'instant effect' that you're looking for, Sha.
I started Cymbalta a year ago because it is on-label for the pain of neuropathy.
It does an amazing job for me, so far.
Usually people take it in the morning, as an antidepressant, but for my pain relief taking it at night is essential.
But, Sha, each of us reacts differently to medications.
I'm not sure about the calming effect because I'm pretty calm, and anxiety hasn't been a problem.
But I've also been on one antidepressant or another since probably 1988, or thereabouts, when Prozac came on the market.
I think the problem with the benzodiazapines, like Valium, Klonopin, Ativan, etc, is that they are meant for short term interruption of anxiety attacks.
When my husband had anxiety attacks related to an illness and a reaction to a medication, he took Ativan, but the frequency slowed down and the attacks went away and haven't returned. He never took it daily.
So your doctor is probably looking for something you can take regularly that will maybe stop you from getting the anxiety.
I have a family member who was taking Klonopin for severe anxiety and wound up with a toxic buildup in her system and hospitalization. In a panic attack she would sometimes takes up to five tablets in an effort to stop it.
Anxiety and panic are horrible to experience.
Sha, I hope you can find what you need.
Keep us posted.