Olanzapine is more expensive than older antipsychotic drugs, such as haloperidol or chlorpromazine. However within the UK, it is available free of charge via the National Health Service.
In the UK medications such as olanzapine are available free of charge to patients within the NHS. In other countries the costs may be covered by some insurance policies.
Olanzapine is usually taken once a day with or without food at around the same time every day, although it is also available as a depot (long lasting) injection.
Parental involvement in the use of olanzapine is minimal since the autistic person usually takes it once a day.