Arimidex Side Effects (Cont.)

Serious Arimidex Side Effects

Some side effects with Arimidex, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include, but are not limited to:
 
  • Depression (see Arimidex and Depression)
  • Anxiety
  • High blood pressure (hypertension)
  • Difficulty breathing
  • Unusual or unexplained vaginal bleeding
  • Increase in tumor size or appearance of new tumors
  • Chest pain
  • Signs of a blood clot, such as pain, swelling, or tenderness (especially in the legs)
  • Signs of an allergic reaction, including unexplained rash, hives, itching, and unexplained swelling.
     

Rare Arimidex Side Effects

Rare side effects of Arimidex occur in 3 to 7 percent of people taking the drug. Because these side effects are so uncommon, it can be difficult to tell whether they are actually caused by Arimidex or by factors unrelated to the medication.
 
Some of these rare side effects include, but are not limited to:
 
  • Flu-like symptoms (such as fever or chills)
  • Indigestion or heartburn
  • Unusual sensations, such as burning or tingling
  • Pelvic pain
  • Muscle pain
  • Sinus infection
  • Vaginal infection or inflammation
  • Cataracts
  • Dry mouth
  • Bronchitis
  • Sweating
  • Anemia
  • Thick, white vaginal discharge.
     

Final Thoughts on Arimidex Side Effects

It is possible that you may experience some or none of the Arimidex side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried. Therefore, make sure to let your healthcare provider know if you develop any side effects while taking Arimidex. Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a side effect, your healthcare provider will be able to diagnose and treat the problem.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;