I think you're confusing your PAWs for a psychiatric illness and seeking to remedy it with a medication that has very little chance of working. There are no antidepressants that work on your opioid receptors except buprenorphine, because unfortunately any medication that affects your opioid receptors will by definition be an opiate/opioid, so there is no current pharmacological way to try to affect those receptors other than going back onto opioids, which would defeat the point of quitting in the first place. PAWs can last anywhere from weeks up to 2 years, but I've heard that 6 months is a pretty common figure for a long-term habit, though there will be continual non-linear improvement in that time - i.e. you will be getting better overall continually, but the nature of PAWs can mean that at times it may feel like your depression gets better & better only to intensify at random intervals, but the overall trend will be of improvement until they break completely. I don't know why you're assuming that your PAWs is over at a few weeks only to be replaced by some separate psychiatric condition when the most likely explanation is that you're still experiencing PAWs? i can understand the temptation to want to believe that, since unfortunately PAWs can only be temporarily ameliorated and the only real cure is time, whereas if you were suffering with depression and anxiety there's a chance Prozac would fix it all for you, but that is extremely unlikely to be the case. Unless I'm missing something here, it sounds like you're deluding yourself a little.
I know PAWs is hard - it's certainly too challenging for me to face at the moment, which is why I'm on a low dose of bupe, but that's just the price we pay for our addictions, and if being 100% sober is a goal of yours then there's nothing for it really other than living a healthy lifestyle, staying abstinent and waiting it out.
