hi. amphetamine psychosis is different from Schizophrenia, -but- there are cases of people prescribed stimulants (ritalin and the various diet pills included) going on to develop chronic psychosis...so, basically, drug-induced Schizophrenia is possible, in some cases.

for a while there, in the US there was concern about cardio-toxicity, because some youngsters treated for add/adhd died. in the medical literature, there are reports of "cardiac events" with legal, prescription-level use and also there seems to be long term toxicity in -some- people. and yet...

stimulant prescribing is apparently up all over the world, and in the US its gone up, up, and away, and now...ritalin is less popular, and the various amphetamines dominate the Rx market.

i wish i could provide some good news, lol. oh wait...overall, low to moderate doses of prescription stimulants -are- surprisingly safe. its far easier to drop a prescription amphetamine than to drop a benzodiazepine or even many pain killers. but...

if its not working well with you right now, id personally ask about something else. do they still have diet pills where you live? the old ones are frowned upon here in the US, but they're still produced and prescribed, mostly (it seems...) by family doctors and the weight loss specialists. some of those...tenuate, phendimetrazine, maybe even phentermine..seem (to me, a non-expert) like they might help without being as harsh as amphetamine.

ritalin is popular in some places, but i dont think its used in eating disorders or for weight loss. i could be wrong. more of an add/adhd and/or depression thing, here anyway.

and...the other amphetamines...various forms of dexedrine, adderall. here in the us, methamphetamine (Desoxyn) is still produced and prescribed now and then, but I think its the least popular amphetamine option (I could be wrong).

sorry about all this. please do talk to your doctor and also...not to question your shrink, but ive sometimes found running things past a caring family doctor really helps, too.