Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.
Olanzapine can be taken with or without food.
Remove an orally disintegrating tablet (Zyprexa Zydis) from the package only when you are ready to take the medicine. Place the tablet in your mouth and allow it to dissolve, without chewing. Swallow several times as the tablet dissolves.
Olanzapine can cause high blood sugar (hyperglycemia). If you are diabetic, check your blood sugar levels on a regular basis.
You may gain weight or have high cholesterol and triglycerides (types of fat) while taking  olanzapine, especially if you are a teenager. You may need frequent blood tests.
Call your doctor if your symptoms do not improve, or if they get worse while using olanzapine.
Do not stop using olanzapine suddenly, even if you feel fine. Stopping suddenly may cause serious side effects.
Olanzapine is sometimes used together with other antipsychotic medications or antidepressants. Use all medications as directed and read all medication guides you receive. Do not change your dose or dosing schedule without your doctor's advice.
Medication may be only part of a complete program of treatment that also includes counseling and other psychological support programs. Follow your doctor's instructions.
Store at room temperature away from moisture, heat, and light.
 Detailed Olanzapine dosage information
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What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include drowsiness, agitation, aggression, slurred speech, confusion, increased heart rate, jerky or uncontrolled muscle movements, trouble breathing, or fainting.
