Anastrozole: Side Effects, Dosage, Uses and More

Anastrozole: Side Effects, Dosage, Uses and More

The level will typically be lowered by about 80% after you’ve taken Arimidex every day for 2 weeks. Your estrogen level may stay this low for up to 6 days after you stop taking Arimidex. If you had side effects related to low estrogen, such as hot flashes, these should start to lessen as your estrogen level increases. When you stop taking Arimidex, the drug that’s left in your body will be gradually broken down by your liver. How long Arimidex stays in your system can vary from person to person.

  • If you are bothered by side effects from taking anastrozole, talk to your doctor.
  • Because of this risk, it’s best to avoid drinking large amounts of alcohol during Arimidex treatment.
  • Keep a list of them and show it to your doctor and pharmacist each time you get a new medicine.
  • Foodreduces the rate but not the overall extent of anastrozole absorption.

The following lists contain some of the key side effects that may occur while taking Arimidex. And your side effects may vary from those listed below depending on the condition you’re using Arimidex to treat. Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use anastrozole only for the indication prescribed. RxList does not provide medical advice, diagnosis or treatment. Get medical help right away if you have new orworsening chest pain or shortness of breath during treatment with ARIMIDEX.

1 Pregnancy

AstraZeneca, the manufacturer of Arimidex, offers a program called Arimidex Patient Direct, which can help to lower the cost of your prescription. If you have questions about using medications that contain estrogen with Arimidex, talk with your doctor. Below are lists of medications that can interact with Arimidex. These lists do not contain all the drugs that may interact with Arimidex. Arimidex can lower your estrogen level by about 70% after 24 hours following your dose of the drug.


Certain adverse reactions andcombinations of adverse reactions were prospectively specified for analysis,based on the known pharmacologic properties and side effect profiles of the twodrugs (see Table 2). Arimidex may not work as well if taken with tamoxifen or an estrogen medication. Tell your doctor all prescription and over-the-counter medications and supplements you use. Anastrozole lowers estrogen in your body, which may cause your bones to become softer and weaker.

Side Effects for Arimidex

The hormone receptor status wasn’t known in 11% of the women. In a clinical study of women with early breast cancer, increased cholesterol levels were seen in 9% of women who took Arimidex for 5 years. In comparison, 3.5% of women who took the cancer drug tamoxifen for 5 years had the same result. ARIMIDEX may cause fetal harm when administered to apregnant woman and offers no clinical benefit to premenopausal women withbreast cancer. There are no adequate and well-controlled studies in pregnant womenusing ARIMIDEX. But they’re both used in women who’ve gone through menopause as adjuvant treatment of early breast cancer and as treatment of advanced breast cancer.

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