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Review: could Arimidex cause Heart pounding or racing?

Summary: Heart pounding or racing could be caused by Arimidex, especially for people who are female, 60+ old, have been taking the drug for 2 - 5 years, also take Zometa, and have Breast cancer.

We study 14,487 people who have side effects while taking Arimidex from FDA and social media. Among them, 172 have Heart pounding or racing. Find out below who they are, when they have Heart pounding or racing and more.

On Apr, 9, 2014: 14,469 people reported to have side effects when taking Arimidex. Among them, 172 people (1.19%) have Heart Pounding Or Racing. They amount to 0.06% of all the 310,476 people who have Heart Pounding Or Racing on eHealthMe.

Trend of Heart pounding or racing in Arimidex reports

Time on Arimidex when people have Heart pounding or racing * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ years
Heart pounding or racing28.00%28.00%12.00%4.00%28.00%0.00%0.00%

Age of people who have Heart pounding or racing when taking Arimidex * :

Heart pounding or racing0.00%0.00%0.00%0.00%0.00%6.94%36.42%56.65%

Severity of Heart pounding or racing when taking Arimidex ** :

leastmoderateseveremost severe
Heart pounding or racing0.00%33.33%66.67%0.00%

How people recovered from Heart pounding or racing ** :

while on the drugafter off the drugnot yet
Heart pounding or racing50.00%0.00%50.00%

Top conditions involved for these people * :

  1. Breast cancer (61 people, 35.47%)
  2. Breast cancer metastatic (29 people, 16.86%)
  3. Blood cholesterol (27 people, 15.70%)
  4. Aortic valve incompetence (25 people, 14.53%)
  5. Haemorrhage (25 people, 14.53%)

Top co-used drugs for these people * :

  1. Zometa (85 people, 49.42%)
  2. Aredia (75 people, 43.60%)
  3. Dilaudid (45 people, 26.16%)
  4. Calcium (43 people, 25.00%)
  5. Neurontin (42 people, 24.42%)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Related topic: Arimidex, Heart pounding or racing

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On eHealthMe, Arimidex (anastrozole) is often used for breast cancer. Find out below the conditions Arimidex is used for, how effective it is, and any alternative drugs that you can use to treat those same conditions.

What is Arimidex used for and how effective is it:

Other drugs that are used to treat the same conditions:

Could it be a symptom from a condition:

Drugs in real world that are associated with:

Could your condition cause it?

Comments from related studies:

  • From this study (3 years ago):

  • Non stop for two days now. I feel like stopping the Armidex but not sure if it could be heart damage from the EC Chemo or the radiotherapy.


NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

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- Arimidex side effects


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- Heart Pounding Or Racing



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