Side Effects of Anastrozole (Cont.)

Common Side Effects of Anastrozole

Anastrozole has been studied thoroughly in clinical trials, in which a group of people taking the drug have side effects documented. In these studies, the most common side effects included:
 
  • Hot flashes -- in up to 36 percent of people
  • Nausea -- up to 20 percent
  • Weakness or fatigue -- up to 19 percent
  • Headaches -- up to 18 percent
  • Arthritis -- up to 17 percent
  • Pain -- up to 17 percent
  • Joint pain -- up to 15 percent
  • Sore throat -- up to 14 percent
  • Bone pain -- up to 12 percent.
     
Other common anastrozole side effects (occurring in 8 to 11 percent of people) included:
 
Rare Side Effects of Anastrozole
Rare side effects of anastrozole 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 anastrozole 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.
     
(Side Effects of Anastrozole Continued: Page 3)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;