How can cannabis-induced psychosis be effectively managed?

Question

Hello doctor,

I am unsure about my diagnosis. The doctor mentioned that I have schizophrenia and high-functioning autism. I am currently on Lithium and wondering how I can discontinue Olanzapine if I need to. My first psychiatric treatment followed a period of heavy marijuana use, which led me to be admitted to a psychiatric ward. There, I was prescribed medications for the first time, including Risperidone and Fluvoxamine, which worked well. However, I stopped taking them, and my condition relapsed. I was then prescribed Paliperidone, and later, Lithium 900 mg, which was effective for six months.

Unfortunately, after missing a few doses, manic symptoms began to reappear, prompting the addition of Olanzapine to my treatment. Since starting Olanzapine, I have had significant issues, including breaking the refrigerator door and experiencing increased hallucinations. I suspect that Olanzapine might be exacerbating these hallucinations. Is it possible for me to stop taking Olanzapine?

Please advise.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Although the provided information is insufficient for a definitive diagnosis, it seems that you may be experiencing cannabis-induced psychosis, a variant of schizophrenia that often begins with cannabis use. While addressing the underlying cause is important, it alone is not usually sufficient to resolve the issue. To make an accurate diagnosis, I would need access to your full medical records or at least 30 minutes of direct interaction with you.

Based on the information available, I believe that your mental health condition is closely linked to cannabis use. While literature on this topic is limited, I have encountered multiple cases of cannabis-induced psychosis. Given that the problem is already present, it is essential to address it with appropriate treatment. Since you have previously responded well to Risperidone (or Paliperidone), I would recommend continuing with Risperidone rather than Olanzapine.

Although Olanzapine can be discontinued, it is important to manage the hallucinations with an alternative medication, preferably Risperidone, as mentioned earlier. Therefore, it is acceptable to stop taking Olanzapine, but you should consult with your psychiatrist to start Risperidone to better manage the hallucinations.

Finally, I recommend a one-on-one discussion to make a proper diagnosis and develop an effective treatment strategy. This can be done through an online consultation if you are comfortable with that option.

I hope this information will help you.

Thanks.

Answer 2

Hello,

Welcome back to icliniq.com.

I understand your concern.

Although your concern about medication-induced psychosis may be valid, it is important to note that the prescribed medications are generally intended to alleviate psychosis, not cause it. If you continue to experience psychotic symptoms while on medication, it often suggests that the current medication is not effective, and a change may be necessary. For instance, if you are having hallucinations while on Olanzapine, switching to another antipsychotic like Risperidone, Paliperidone, or Quetiapine could be beneficial.

In cases of cannabis-induced psychosis, medications might be gradually reduced after a period of sustained remission, typically around two years. If remission has not been achieved, it is advisable to continue with the medication. Once the required duration of remission is reached, the medication can be tapered off gradually. Always consult with a specialist doctor before making any changes to your medication regimen and follow their guidance.

I hope this information will help you.

Thank you.