Hi Gals,

I had been taking Arimidex for three weeks and then experienced relatively severe Supra Ventricular Tacchycardia (palpitations). It has a biological half life of 50 hours. I stopped taking it immediately and after 48 hours the palpitations stopped. I have gone back on Tomoxifen.

Susie

I started taking Arimidex and in 2 days, I felt like I was on speed...My insides were shaking and I was so nervous that I wanted to scream. My oncologist told me to stop taking it. He said he had not heard of that side effect. I can now tell him I have heard it from someone else. My body is still exhausted from it. I am going to the beach Sat. and he said to call him when I get back and he'll start me on something else.