Selvom kliniske og epidemiologiske forsøg indtil videre ikke har vist nogen klar sammenhæng med administration af antipsykotika, bør der udvises forsigtighed hos patienter med relevant medicinsk anamnese.
15 monitoring of therapy by qualified physicians and the CHMP was therefore of the opinion that due to nature of the illness and long-term experience with treatment of schizophrenia by atypical antipsychotics, proper monitoring of therapy after switching antipsychotic treatment can be expected, without being explicitly mentioned in the SPC.