Medication Side Effects: Insights from a Neurology Perspective

Last question?

Hello, Dr.
Gao.
(I apologize for pressing send before finishing my message yesterday.) I would like to ask about the medications I recently changed.
These are the medications I received at the clinic: I take a 0.5 mg capsule of Mecobalamin (Nerve Growth Factor) in the morning along with my antihypertensive medication, "Yuli Shupan" 0.25 mg (taken before bed), Jingde Keqianping 0.5 mg, and a 500 mg calcium carbonate tablet, as well as a self-paid supplement called Xinboning.

I have been taking insomnia medication for almost four years, but recently I have experienced some drowsiness, dizziness, blurred vision, and memory loss.
I went to an ophthalmologist, and the doctor said my eyes are fine.
I also mentioned these issues to the doctor at the insomnia clinic, who said that the medications prescribed to me should not cause such symptoms.

I would like to ask Dr.
Gao if it is okay for me to only take the medication before bed.
Additionally, I have been experiencing a tingling sensation in my head, as if blood is rushing out.
Furthermore, my heart rate has slowed down recently, and my blood pressure has also decreased, with diastolic pressure often between 60 and 70, and my heart rate ranging from a low of 53 to a high of 68.
I would like to know if these issues are related to the neurological medications I am currently taking.

Cai Xiansheng, 30~39 year old female. Ask Date: 2016/05/10

Dr. Gao Chunde reply Neurology

Side effects of medications are inevitable, but it is important to weigh the benefits against the side effects to determine if the medication is worth taking.
If a medication causes a tingling sensation in the head, one should consider the purpose of taking it.
If it does not serve a significant purpose, it may be best to avoid it.
However, only your primary physician knows how this medication specifically addresses your condition, so it is advisable to discuss and make a decision with them.
If your doctor indicates that the medication should not cause symptoms such as drowsiness, dizziness, blurred vision, or memory loss, then it may be necessary to consider other underlying conditions, such as thyroid or other endocrine metabolic issues, or central nervous system disorders.
In such cases, it may be appropriate to consult a neurologist at a hospital for further evaluation and relevant tests.

Reply Date: 2016/05/10

More Info

When considering the side effects of medications, especially those prescribed for neurological conditions, it is essential to understand both the benefits and potential risks associated with these treatments. In your case, you mentioned taking several medications, including methylcobalamin (Nabao), a sleep aid (likely a benzodiazepine), and other medications for conditions such as hypertension and calcium supplementation.
Firstly, it's important to recognize that medications can have a wide range of side effects, and these can vary significantly from person to person. Common side effects of sleep medications, particularly benzodiazepines, include drowsiness, dizziness, blurred vision, and memory impairment. These side effects can be particularly pronounced in individuals who have been on these medications for an extended period, as tolerance can develop, leading to the need for higher doses to achieve the same effect. Additionally, withdrawal symptoms can occur if the medication is abruptly discontinued after long-term use.

In your case, the symptoms of excessive sleepiness, dizziness, blurred vision, and memory issues could indeed be related to the medications you are taking. While your sleep specialist may have indicated that the medications prescribed should not cause these symptoms, it is crucial to consider that individual responses to medication can vary. Factors such as age, overall health, and the presence of other medical conditions can influence how a person reacts to a particular drug.

Regarding the specific medications you mentioned, methylcobalamin is generally considered safe and is often used to treat vitamin B12 deficiency, which can help with nerve health. However, it is not typically associated with the side effects you described. The sleep medication you are taking may be more likely to contribute to your symptoms, especially if you have been using it for an extended period.
As for the heart rate and blood pressure changes you mentioned, these could also be influenced by your medications. Some medications can cause bradycardia (slow heart rate) or hypotension (low blood pressure), particularly if they affect the central nervous system. It is essential to monitor these changes closely, as they can pose risks, especially if your heart rate drops significantly or if you experience symptoms like fainting or extreme fatigue.

If you are concerned about the side effects you are experiencing, it is advisable to consult with your healthcare provider. They can review your current medication regimen, assess whether any of your medications may be contributing to your symptoms, and consider alternative treatments or adjustments to your dosages. It is also worth discussing the possibility of tapering off certain medications, especially if they are no longer providing the desired benefits or if their side effects outweigh their advantages.

In summary, while medications can be beneficial for managing neurological conditions and sleep disorders, they can also come with significant side effects. It is crucial to maintain open communication with your healthcare provider about any adverse effects you experience and to work together to find the most effective and safe treatment plan for your needs. Regular follow-ups and medication reviews can help ensure that you are receiving the best care possible while minimizing the risks associated with medication use.

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