Arimidex During Pregnancy & Breastfeeding

The FDA assigned Arimidex to Category D which means the drug can cross the placenta barrier and can produce harmful effects (even death) to the fetus.

Based on animal studies, increases in resorption, pre and post implantation loss, and fetal deaths have all been observed. Studies also revealed delayed fetal developments and several evidence of fetotoxicity. Because of this, Arimidex (Anastrozole) is contraindicated in pregnant women.

There is limited data regarding the effects of Arimidex in lactation but for safety purposes, breastfeeding mothers should take it with utmost precaution.

It is important that you discuss any existing medical condition with your doctor. For instance, if you have drug and food allergies, it is important that you inform your doctor about it. Advise your doctor of any non-prescription medication, prescription drugs, herbal or dietary supplements that you are taking. It is advisable that you take a pregnancy test before subjecting yourself to medication. Inform your doctor if you are pregnant, planning to be pregnant or breastfeeding so he can suggest alternative treatment for you. Let your doctor know of any history of liver problems, heart or blood vessel problems, osteoporosis, elevated cholesterol and lipid levels.

It is important that you inform your physician about your medical history as well as your current medical condition. Seek medical help immediately if serious side effects are experienced. Only you doctor can help you in case of emergency.