Breast Cancer Home > Arimidex Overdose

The exact effects of an Arimidex overdose are unknown, since there are so few reported cases. In addition, women who were given up to 10 times the recommended dose in clinical studies tolerated the drug without problems. Factors that may affect symptoms, as well as treatment, for an Arimidex overdose include how much of the drug was taken and whether it was taken with alcohol or street drugs.

Arimidex Overdose: An Introduction

Arimidex® (anastrozole) is a prescription medication used to treat breast cancer in postmenopausal women. It is part of a group of medications called aromatase inhibitors.
Arimidex overdose effects will vary, depending on a number of factors, including how much of the drug was taken and whether it was taken with any other medicines, alcohol, street drugs, or a combination of these.
If you happen to overdose on Arimidex, seek immediate medical attention.

Arimidex Overdose: What Does the Research Say?

It is not known what exactly to expect from an Arimidex overdose. In studies, women tolerated high doses (up to 10 times the recommended dose) without problems. In animal studies, large doses of the drug caused severe stomach irritation, including stomach ulcers. Symptoms of such problems include:
  • Stomach pain
  • Blood in the stool
  • Nausea and vomiting.

Treatment for an Arimidex Overdose

Given that there have been so few cases of people taking too much Arimidex, the best treatment for an Arimidex overdose is not clear. If the overdose was recent, the healthcare provider may give certain medicines or place a tube into the stomach to "pump the stomach." Dialysis may also be useful. Treatment typically also involves supportive care. This type of care consists of treating the symptoms that occur as a result of the overdose.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
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