Olanzapine is not for use in psychotic conditions related to dementia. Olanzapine may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions.
Olanzapine may cause you to have high blood sugar (hyperglycemia). Symptoms include increased thirst, loss of appetite, increased urination, nausea, vomiting, drowsiness, dry skin, and dry mouth. If you are diabetic, check your blood sugar levels on a regular basis while you are taking olanzapine.
It may take up to 4 weeks of using this medicine before your symptoms improve. For best results, keep using the medication as directed. Talk with your doctor if your symptoms do not improve after 4 weeks of treatment.
Olanzapine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.
Avoid drinking alcohol, which can increase some of the side effects of olanzapine.
Avoid becoming overheated or dehydrated. Drink plenty of fluids, especially in hot weather and during exercise. It is easier to become dangerously overheated and dehydrated while you are taking olanzapine.