Can I Take Zyprexa and Red Yeast Rice Together for Schizophrenia? - Psychiatry

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Can Jinpu Su and red yeast rice be taken together?


Can Zyprexa (olanzapine) and red yeast rice be taken together?

Joe, 50~59 year old female. Ask Date: 2022/11/14

Dr. Tang Jiahong reply Psychiatry


The main ingredient in commercially available red yeast rice dietary supplements is lovastatin.
According to a search on https://reference.medscape.com/drug-interactionchecker, there are no significant interactions between lovastatin and olanzapine (Zyprexa).
If there are concerns, it is advisable to take them one hour apart.

Reply Date: 2022/11/14

More Info


When considering the combination of Zyprexa (olanzapine) and red yeast rice for the treatment of schizophrenia, it is essential to understand both the pharmacological properties of these substances and their potential interactions. Zyprexa is an atypical antipsychotic medication commonly prescribed for schizophrenia and bipolar disorder. It works by modulating neurotransmitters in the brain, particularly dopamine and serotonin, which are crucial in regulating mood and behavior.

Red yeast rice, on the other hand, is a traditional Chinese medicine that contains monacolin K, which is chemically identical to lovastatin, a statin used to lower cholesterol levels. While red yeast rice is often marketed as a natural supplement for cholesterol management, it is important to note that it can have effects on liver function and muscle health, similar to other statins.

Based on the information provided, there appears to be no significant drug interaction between Zyprexa and red yeast rice when taken together. The reference to the interaction checker indicates that lovastatin (the active component of red yeast rice) does not have a notable interaction with olanzapine. However, it is always prudent to take medications at different times to minimize any potential for interaction, even if none is documented. For example, spacing the doses by an hour could be a reasonable approach if there are concerns about combined effects.

It is crucial to consider the overall health of the patient, including any other medications they may be taking, their liver function, and any underlying health conditions. Both Zyprexa and red yeast rice can affect liver enzymes, and combining them could theoretically increase the risk of liver-related side effects. Regular monitoring of liver function tests may be advisable if these substances are used concurrently.

Moreover, schizophrenia is a complex mental health disorder that often requires a comprehensive treatment plan, including medication, therapy, and lifestyle modifications. While red yeast rice may offer some benefits for cholesterol management, it should not be viewed as a substitute for prescribed antipsychotic medications. The primary focus should remain on effectively managing the symptoms of schizophrenia with the appropriate psychiatric care.

In conclusion, while there is no documented significant interaction between Zyprexa and red yeast rice, it is essential to approach this combination with caution. Consulting with a healthcare provider is crucial before making any changes to medication regimens, especially in the context of managing a serious mental health condition like schizophrenia. They can provide personalized advice based on the patient's specific health profile and treatment needs. Regular follow-ups and open communication with healthcare professionals will ensure that the treatment plan remains safe and effective.

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