Other related drugs are also being developed. All of these drugs can cause NMS, so people who take them should report high body temperatures, rigid muscles and confusion or unconsciousness to their doctor immediately. All of the new drugs can cause dizziness if you stand up quickly. The new drugs are much less likely to cause tardive dyskinesia. They can cause sleepiness, though.
Clozapine can lower the white blood cell count.
This can be very dangerous because it makes the person prone to infection. For this reason, patients taking clozapine must have their blood checked weekly. Olanzapine can hurt the liver, so liver function tests are needed. People who take these medicines need to drink plenty of liquids. They should avoid spending too much time in the sun since they tend to get overheated.