Some people who take olanzapine may develop a life-threatening condition called neuroleptic malignant syndrome (NMS), which can include symptoms such as a high fever, stiff muscles, and confusion. Among the conditions to let your healthcare provider know about before taking olanzapine are glaucoma, diabetes, and epilepsy. Some other precautions and warnings with olanzapine include possible drug interactions, the safety of taking olanzapine while pregnant or nursing, and people who should not take olanzapine at all (such as those who are allergic to olanzapine or any of its inactive components).
Any allergies, including allergies to food, dyes, or preservatives.
Also let your healthcare provider know if you:
Are pregnant or thinking of becoming pregnant
Are breastfeeding
Drink alcohol.
You should also be sure to tell your healthcare provider about all of the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.