Does Kirkland Hair Growth Solution Cause Rapid Heartbeat? - Cardiology

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Tachycardia caused by hair growth lotion?


Hello doctor, I have recently been using Kirkland's 5% minoxidil solution, but after each application, I experience an increased heart rate for about 30 minutes.
The official website also mentions that if I have such symptoms, I should consult a doctor.
Should I continue using it?

Mr. Lai, 20~29 year old female. Ask Date: 2023/06/20

Dr. Huang Yinghe reply Cardiology


Kirkland 5% Minoxidil solution is a product used for the treatment of male pattern baldness or female hair loss.
It has vasodilatory effects, which may potentially cause side effects such as increased heart rate and palpitations.
Generally, these effects are not serious, but individual responses to the medication can vary, and it may also trigger more severe arrhythmias in some cases.
Specific recommendations cannot be provided based on individual circumstances.
If these side effects are concerning to you, it is advisable to consult a cardiologist for further evaluation.

Reply Date: 2023/06/20

More Info


Using Kirkland Hair Growth Solution, which contains 5% minoxidil, can indeed lead to side effects, including a rapid heartbeat (tachycardia). Minoxidil is a vasodilator, meaning it works by widening blood vessels to improve blood flow, which is beneficial for stimulating hair growth. However, this mechanism can also lead to systemic effects, especially if the medication is absorbed into the bloodstream in significant amounts.

When you apply minoxidil topically, it is intended to act locally on the scalp. However, some individuals may experience systemic absorption, leading to side effects such as increased heart rate, dizziness, or even swelling in some cases. The fact that you notice a rapid heartbeat approximately 30 minutes after application suggests that your body may be reacting to the medication.

Here are some considerations and recommendations regarding your situation:
1. Consult Your Doctor: Since you are experiencing a rapid heartbeat after using the product, it is crucial to consult with your healthcare provider. They can assess your symptoms in the context of your overall health and determine whether you should continue using the product.

2. Dosage and Application: Ensure that you are using the product as directed. Over-application or using it more frequently than recommended can increase the likelihood of systemic absorption and side effects. Stick to the prescribed dosage and application frequency.

3. Monitor Symptoms: Keep track of any other symptoms you may experience, such as dizziness, chest pain, or swelling. This information will be helpful for your healthcare provider in evaluating your condition.

4. Consider Alternatives: If your doctor advises against continuing with minoxidil due to your symptoms, there are alternative treatments for hair loss, such as finasteride (Propecia) or low-level laser therapy. Discuss these options with your healthcare provider.

5. Lifestyle Factors: Sometimes, anxiety or stress can exacerbate heart rate issues. If you find that your heart rate increases with the application of minoxidil, consider relaxation techniques or stress management strategies.

6. Potential Allergic Reactions: Although rare, some individuals may have allergic reactions to minoxidil or other ingredients in the formulation. If you notice any rash, itching, or swelling, discontinue use and seek medical advice.

In summary, while minoxidil can be effective for hair growth, it is essential to be aware of potential side effects like a rapid heartbeat. Consulting with your healthcare provider is the best course of action to ensure your safety and determine the most appropriate treatment for your hair loss. Remember, your health and well-being should always come first, and there are various options available for managing hair loss.

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