Merislon: Effects on Dizziness and Blood Pressure Concerns - Pharmacology

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Medication Use


Merislon is a medication commonly used to treat dizziness and vertigo.
It contains the active ingredient meclizine, which helps to reduce symptoms associated with motion sickness and balance disorders.
Regarding blood pressure, Merislon is not typically known to cause a significant drop in blood pressure.
However, since you are already taking antihypertensive medication, it is important to consult your doctor before starting Merislon to ensure it is safe for you and to monitor your blood pressure closely.

Shu Zhen, 60~69 year old female. Ask Date: 2013/02/27

Dr. Hou Fangmin reply Pharmacology


Hello Shuzhen,
The medication Merislon is an antiemetic.
Its indications include dizziness and hearing impairment caused by Meniere's disease.
Possible side effects include gastrointestinal discomfort, nausea, vomiting, headache, drowsiness, and urticaria, among others.

Regarding drug interactions, since Merislon is an antihistamine, please inform any other healthcare providers, especially if you have a cold, that you are taking this medication to avoid the risk of duplicate therapy.
Additionally, if you have asthma, you should be particularly cautious when using this medication.
As for whether it can cause a drop in blood pressure, it does not lower blood pressure, so you can use it with peace of mind.
However, it is still important to monitor your blood pressure regularly.
If you experience any discomfort, please seek medical attention promptly, as dizziness can sometimes lead to fluctuations in blood pressure.
Also, be careful when walking during episodes of dizziness, as this medication may cause some drowsiness.
Take care when getting up to avoid falls.
Wishing you peace, joy, and good health.

Reply Date: 2013/02/27

More Info


Merislon is a medication primarily used to treat symptoms associated with Meniere's disease, such as dizziness and hearing impairment. The active ingredient in Merislon is typically an antihistamine, which helps to alleviate vertigo and balance issues by acting on the vestibular system in the inner ear. This medication is particularly beneficial for patients experiencing episodes of dizziness, which can significantly impact their quality of life.

Regarding your concern about blood pressure, it is important to note that Merislon is not known to cause a significant drop in blood pressure. In fact, antihistamines like those found in Merislon generally do not have a direct effect on blood pressure levels. However, it is crucial to monitor your blood pressure regularly, especially since you are already on medication for hypertension. The dizziness you are experiencing could be related to fluctuations in your blood pressure rather than a direct side effect of Merislon.

When taking Merislon, you may experience some common side effects, including gastrointestinal discomfort, nausea, vomiting, headache, drowsiness, and in some cases, allergic reactions like hives. The drowsiness effect is particularly noteworthy, as it may impair your ability to perform tasks that require alertness, such as driving or operating machinery. Therefore, it is advisable to be cautious when starting this medication, especially if you are prone to dizziness.

If you are already on antihypertensive medication, it is essential to communicate with your healthcare provider about your concerns regarding blood pressure. They can help you assess whether the addition of Merislon is appropriate for your treatment plan. In some cases, dizziness can be a symptom of low blood pressure, which may be exacerbated by certain medications. Therefore, your doctor may recommend regular blood pressure monitoring to ensure that your levels remain stable while you are on Merislon.

In summary, Merislon is an effective treatment for dizziness related to Meniere's disease and is not typically associated with lowering blood pressure. However, due to your existing hypertension and the potential for dizziness to be influenced by blood pressure changes, it is vital to maintain open communication with your healthcare provider. They can provide personalized advice and adjustments to your treatment plan as necessary, ensuring that you manage both your dizziness and blood pressure effectively. Always report any new or worsening symptoms to your doctor promptly, as they can provide the best guidance based on your individual health needs.

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