the Use and Efficacy of Long-Acting Injectable Antipsychotics - Psychiatry

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The usage cycle and administration sites for Anleuprolide acetate long-acting injection?


Hello, doctor! I have a friend who is about the same age as me and received an injection of Paliperidone 300 mg.
They mentioned that the effect lasted only 3 days, but I found online that this medication is supposed to be administered once a month.
Could you help me inquire if this injection can be given once a week? Is it covered by health insurance? Are there any medications available for injection at general psychiatric clinics?
Additionally, I have a personal question: could their perception of the effect lasting only 3 days be part of a delusion? After their first injection, they calculated the dosage based on the oral medication they were taking and the time they felt normal, concluding that the injection's effectiveness lasted for three days.
They continue to tell me that the effect lasts only three days after each injection.
Since conditions like this cannot be quantified or confirmed through testing data, it is difficult to determine whether this injection is effective or merely a placebo.
It seems to be just a feeling (including their strong belief that they are being monitored by the entire world and are being persecuted).
However, I understand that what they describe is very real to them; it’s just a matter of how intense or mild that feeling is.

line sang, 40~49 year old female. Ask Date: 2023/11/23

Dr. Wu Enliang reply Psychiatry


User Q: I have a friend who is about the same age as me and received an injection of Aripiprazole 300mg.
They mentioned that the effects lasted only 3 days, but I found online that this medication is supposed to be administered once a month.
Can you help me inquire if this injection can be given once a week? Is it covered by health insurance? Do general psychiatric clinics have medications that can be injected? A: If there are no side effects after the first injection, it can be administered again after one week, but thereafter it is advisable to stick to the once-a-month schedule.
Health insurance does cover it, and some psychiatric clinics can administer it.
Q: Additionally, I have a personal question.
Is their claim that the effects last for 3 days possibly part of a delusion? (Because after the first injection, they calculated the dosage using the oral medication dosage and the time they felt normal after taking it, concluding that the injection's effective period is three days.
They continue to tell me that the effective period is three days after each injection.) A: The noticeable effects should typically begin around two weeks after the injection.
If they feel the effects for only three days, it is more likely to be a placebo effect.
Dr.
Wu Enliang

Reply Date: 2023/11/23

More Info


Long-acting injectable antipsychotics (LAIs) are a critical component in the management of various psychiatric disorders, particularly schizophrenia and bipolar disorder. These medications are designed to provide sustained therapeutic effects over extended periods, typically ranging from two weeks to a month, depending on the specific formulation. One of the commonly used LAIs is Aripiprazole Maintena (Abilify Maintena), which is administered once a month.
Your friend's experience of feeling the effects of the injection for only three days raises several important considerations. First, it is essential to understand that the pharmacokinetics of LAIs can vary significantly among individuals. Factors such as metabolism, body weight, and the presence of other medical conditions can influence how long the medication remains effective. While the manufacturer may indicate a one-month duration of action, some patients may perceive a shorter duration of efficacy due to these individual differences.

Regarding the possibility of administering the injection weekly, it is crucial to adhere to the prescribed dosing schedule. LAIs are formulated to release the medication slowly over time, and altering the frequency of administration could lead to suboptimal therapeutic outcomes or increased side effects. Therefore, it is not advisable to administer Aripiprazole Maintena weekly unless specifically directed by a healthcare provider.
As for insurance coverage, many health insurance plans, including Medicare and Medicaid, often cover LAIs, but the specifics can vary. It is best to check with the insurance provider to understand the coverage details for the specific medication and its administration.

In terms of the perception of efficacy, your friend's belief that the medication only works for three days could be influenced by several factors, including psychological aspects of their condition. Patients with psychotic disorders may experience distorted perceptions of reality, leading them to believe that the medication's effects are shorter than they are. This phenomenon can be compounded by the presence of delusions or paranoia, which may cause them to misinterpret their experiences.
It is also important to consider the role of the placebo effect in psychiatric treatment. The belief that a treatment is effective can sometimes lead to real improvements in symptoms, even if the treatment itself does not have the expected pharmacological effect. This is particularly relevant in psychiatric conditions, where subjective experiences and perceptions can significantly influence treatment outcomes.

Given your friend's situation, it would be beneficial for them to discuss their concerns and experiences with their prescribing physician. A thorough evaluation can help determine whether the current treatment plan is appropriate or if adjustments are necessary. This may include exploring alternative medications, adjusting dosages, or incorporating additional therapeutic modalities, such as psychotherapy or support groups.

In conclusion, while long-acting injectable antipsychotics are designed to provide sustained relief from symptoms, individual experiences can vary widely. It is essential for patients to maintain open communication with their healthcare providers to ensure that their treatment is effective and tailored to their specific needs. If your friend continues to feel that the medication is not working as intended, it is crucial for them to seek professional guidance to address these concerns appropriately.

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