It is impossible for your healthcare provider to know whether you will develop insomnia while taking Stelazine. Also, in some cases, if a person does develop insomnia, it is difficult to know whether these problems are because of the condition or Stelazine itself. This is because insomnia is common with conditions that Stelazine is used to treat. For example, a number of people with schizophrenia or anxiety report insomnia.
If you develop insomnia while taking Stelazine, talk with your healthcare provider. He or she may be able to recommend other treatments, including adjusting the Stelazine dosage or trying another anxiety or schizophrenia medicine.