[Psychiatry].
The main innovation of the year 2004 was the introduction of a new, second-generation antipsychotic drug with a new mechanism of action (partial dopamine agonist), encouraging first clinical results, and an advantageous clinical tolerance profile. Additionally, three new galenic forms are presented: an oral, extended-release form of methylphenidate that could be useful in the treatment of attention-deficit/hyperactivity disorders; an intramuscular depot form of a second-generation antipsychotic drug (risperidone) with the advantage of improving adherence; and an intramuscular form of a second generation antipsychotic (olanzapine) that is valuable in emergency situations. Finally, we will briefly give an update on the advantages of lamotrigine in bipolar depression.