Drug Interactions With Olanzapine
A few of the drugs that can potentially interact with olanzapine include alcohol, carbamazepine, and ketoconazole. Drug interactions with olanzapine can increase your risk of side effects or perhaps make olanzapine less effective, among other things. You should make sure to talk with your pharmacist or healthcare provider about the olanzapine drug interactions that may apply to you.
Olanzapine (Zyprexa®) can potentially interact with a number of other medicines. Some of these medicines that may lead to olanzapine interactions include:
- Carbamazepine (Epitol®, Equetro™, Tegretol®, Tegretol XR®)
- Ciprofloxacin (Cipro®)
- Fluvoxamine (Luvox®)
- Ketoconazole (Nizoral®)
- Mexiletine (Mexitil®)
- Norfloxacin (Noroxin®)
- Ofloxacin (Floxin®).
Olanzapine Interactions ExplainedThe following sections explain in detail the potentially negative interactions that can occur when olanzapine is combined with any of the drugs listed above.
It is not recommended that you drink alcohol while taking olanzapine. Taking alcohol and olanzapine together may cause unwanted side effects (see Alcohol and Zyprexa).
Carbamazepine (Epitol, Equetro, Tegretol, Tegretol XR)
Taking olanzapine with carbamazepine can decrease the amount of olanzapine in your blood, perhaps lowering its effectiveness. If you are taking these drugs together, your healthcare provider may need to increase your dose of olanzapine.