Mood stabilizers and atypical antipsychotics are commonly prescribed. Olanzapine is associated with the highest placental exposure of any atypical antipsychotic. Placental exposure is least for quetiapine compared to other atypical antipsychotics. Weight gain is also less of a concern with ziprasidone compared to other atypical antipsychotics. It is debatable whether, as a class, typical or atypical antipsychotics are more effective. It is debatable whether, as a class, typical or atypical antipsychotics are better. Data on treatment efficacies are strongest for atypical antipsychotics. This syndrome is caused by atypical chromosomal development. True prevalence of atypical depression is difficult to determine. A 2014 review found lurasidone to be similar in effectiveness to other atypical antipsychotics. Eight percent are either atypical or malignant. MS is a clinically defined entity with several atypical presentations. There are two main types&colon; typical and atypical trigeminal neuralgia. They are particularly effective in treating atypical depression. This warrants monitoring and reporting of suspicious cases of atypical pneumonia.