No study has ever showed increased suicide, or even suicide attempts on SSRIs. Some have shown increased suicidal thoughts, leading to the BBW, which then led to some very interesting chances at research to have an abrupt change in prescribing of SSRIs which is absolutely of interest to anyone who knows/cares about public health.
re: ADHD, I am not sure who the heck told you there is no evidence for improvement but that is such a patently incorrect summary of the literature. There are literally like 100 articles on this, many of which were done in other countries that have methodological advantages to research that could even be conducted in the US and is really the gold standard for long-term studies. Here is 1 review but is not even close to exhaustive of the literature.
http://bmcmedicine.biomedcentral.com/articles/10.1186/1741-7015-10-99
Re: psychosis there has been admittedly early studies re: omega 3's in high risk youth, which is child psych. Also, there is now evidence of harm (that is earlier) psychosis with stimulants in kids with parents that had schizophrenia. I attempt to ameliorate that harm using non-stimulant tx for ADHD after it's started by other prescribers.
I'm a bit too busy with personal life to post 50 articles, but this anti-child psychiatry stance from a lot of SDN is really quite toxic to the field. I am not sure how people get off so much on bashing CAP and the only reason I even wrote this is for prospective medical students/residents.