Dizziness: Is It a Side Effect of Long-Term Medication? - Cardiology

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Dizziness and discomfort?


Hello, doctor.
I have been taking Kankin 1.25 mg for over a year now.
I used to experience dizziness, but it was manageable with rest.
I consulted my physician about it, and since it’s a low dose, they said it’s unlikely to cause dizziness.
However, I have recently noticed that my dizziness has become increasingly uncomfortable.
Could it be a side effect from taking the medication for too long, or could it indicate a heart problem? (I was hospitalized for a pulmonary embolism on December 16, 2019, and I just stopped taking anticoagulants on January 27, 2021.)

Wen, 40~49 year old female. Ask Date: 2021/03/01

Dr. Li Han reply Cardiology


Hello, regarding your inquiry about "dizziness" and your statement that you have been taking Concor 1.25 mg for over a year, and that you had dizziness issues even before starting the medication, which you felt was manageable with rest, but recently the dizziness has become increasingly uncomfortable.
You are concerned whether this could be a side effect of the medication or related to a heart issue.
Generally, if the symptoms are related to the medication or the heart, there would be objective evidence found during the occurrence of symptoms, such as blood pressure, heart rate, or electrocardiogram (ECG) results.
Since there are many causes of dizziness, if it continues to trouble you, it is advisable to consult an Ear, Nose, and Throat (ENT) specialist or a neurologist for expert opinion.
The Ministry of Health and Welfare Changhua Hospital cares about your well-being.

Reply Date: 2021/03/01

More Info


Dizziness can indeed be a concerning symptom, especially when it becomes more pronounced over time. In your case, you've been taking a medication called 康肯 (likely a reference to a specific medication, possibly a type of anticoagulant or another class of drug) for over a year, and you are experiencing increased dizziness. While your doctor has indicated that the low dosage is unlikely to cause dizziness, it is essential to consider several factors that could contribute to your symptoms.

Firstly, long-term use of certain medications can lead to side effects that may not have been apparent initially. Dizziness can be a side effect of various medications, including those that affect the central nervous system, blood pressure, or blood flow. If 康肯 has any sedative properties or affects your blood pressure, it could potentially contribute to your dizziness, especially if your body has adjusted to the medication over time.

Additionally, your medical history is significant. You mentioned a previous hospitalization for pulmonary embolism and recent cessation of anticoagulants. The transition off anticoagulants can sometimes lead to changes in blood flow dynamics, which might contribute to dizziness. If your body is still adjusting to these changes, it could explain the increased dizziness you are experiencing.

Moreover, other underlying health issues, such as cardiovascular problems, could also be a factor. Dizziness can be a symptom of heart-related issues, particularly if there are problems with blood circulation or heart rhythm. Given your history of pulmonary embolism, it would be prudent to monitor your cardiovascular health closely.

To address your concerns, here are some recommendations:
1. Consult Your Doctor: It is crucial to discuss your increasing dizziness with your healthcare provider. They may want to evaluate your current medication regimen, check for potential interactions, and assess whether the dizziness is related to the medication or another underlying condition.

2. Monitor Symptoms: Keep a detailed record of your dizziness episodes, including when they occur, their severity, and any accompanying symptoms. This information can help your doctor make a more informed decision about your treatment.

3. Consider Medication Review: If your doctor suspects that your current medication may be contributing to your dizziness, they might consider adjusting the dosage or switching to a different medication that has a more favorable side effect profile.

4. Evaluate Cardiovascular Health: Given your history, it may be beneficial to undergo a cardiovascular evaluation. This could include an electrocardiogram (ECG), echocardiogram, or other tests to ensure your heart is functioning well.

5. Lifestyle Modifications: Sometimes, lifestyle changes can help manage dizziness. Staying hydrated, avoiding sudden changes in position, and ensuring you are getting enough rest can be beneficial.

6. Physical Therapy: If dizziness is related to balance issues, vestibular rehabilitation therapy may be helpful. A physical therapist can work with you to improve balance and reduce dizziness.

In summary, while dizziness can be a side effect of long-term medication use, it is essential to consider your overall health and any underlying conditions. A thorough evaluation by your healthcare provider is necessary to determine the cause of your symptoms and to develop an appropriate treatment plan. Your health and safety should always be the priority, so do not hesitate to seek medical advice.

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