Ok so I'm not quite in agreement with people.
Wellbutrin has basically the same mechanism of action as methylphenidate (which is very similar to amphetamines) yet is just less potent and is prescribed for depression and social anxiety too.
MAOIs (of which amphetamine is a very weak one) are prescribed for social anxiety and obviously depression too; they have the same aggregate effect as amphetamine; they just deal with more amines than norepinepherine/epinepherine/dopamine.
I remember seeing a thread (I think it was on bluelight) about how social anxiety is in some cases caused by a lack of the sub-types of dopamine stimulation associated with energy, or, stimulation (D1 and D2, I think). And it works very well for me. I'm not talking about minor social anxiety though, I'm talking about almost total withdrawal. Amphetamine gives me a build and makes me not fearless but human enough to hold my own in front of people. The idiots on the psych ward had me on super high doses of anti-psychotics when a low dose in combination with a low dose of amphetamine would have been more than enough.
If it really is the anxiety from amphetamine which is the final bolt in the coffin so-to-speak (as to one not being able to use it) then one could be on another medication too; when amphetamine is prescribed for depression its usually in tandem with an SSRI anyways. Using it in combination with an anti-psychotic seems to be popular too - reducing the stimulation, anxiety ("raw" feeling if you will) and the reward but leaving many of the beneficial effects. I've been told by a very highly-regarded psychiatrist in my town that its best to be on two or more medications which work together anyways. If you're going to hand yourself over to the psychiatric institution then its all-or-nothing; don't stop short of total treatment. Its not necessarily bad to be on more than one medication *end rant*
I think there's a big difference between getting high on amphetamine as much as possible until you crash and using it at a stable dose in combination with another substance (while taking occasional breaks and supplementing with elements which reduce tolerance and alleviate some neuro-toxicity and reward) regularly.
Amphetamine was a standard treatment for depression for several decades in the United States and probably longer around the world (and its still used, one of my family members is on it); it couldn't have been that bad. I think its mainly the abuse potential which restricts its use.
I say if you supplement with magnesium+lithium and maybe other relatively benign substances while taking it with an SSRI and/or anti-psychotic and take breaks then its a great treatment.
Here's the thing though: a doctor who prescribes it right off the bat or if you ask for it initially is either totally corrupt or an idiot who cheated his way through medical school. Try other treatments first. Hell, try meditation before medication. Change your lifestyle. No offense but that was not a smart thing to do. I doubt you need it for focus.
It goes something like: basic lifestyle changes, add diet, limit detrimental activities, exercise, meditation, supplements, herbs (not illegal ones, come on), SSRIs, SNRIs/Bupropion/Mirtazepine/Viibryd/Trazodone/Abilify/ etc (I know I'm missing some), MAOIs, then MAYBE amphetamine if all don't work and your doctor thinks its a good idea.