Switching from letrozole to anastrozole

Has anyone out there made the switch from letrozole to anastrozole because of bad side effects on the former? I had hot flushes, horrendous night sweats and worst of all painful joints. My hands were the worst affected which meant I was struggling to do simple things like take the top off the milk and also not able to do my favourite hobby of crocheting. I only made the switch tonight but have read that changing the meds can cause more problems. Any advice/experiences would be very welcome. Thank you. Mog

Parents
  • Hi Ive been on Anastrazole for nearly 2 years after Grade 2 DIC At first a little pain in my joints and  occasional hot flushes but all has calmed down and I find it easily manageable. I do have to take Adcal vitamin D twice a day and every 6 months I have an intravenous Bisphosphonate injection to protect my bones, this is just for 2 years so am about to have my last one.  I haven't taken Letrozole or Tamoxifen so don't have a comparison. Hope it gets easier for you

    Best wishes

    Silver 

  • Hi Silver, nice to hear from you. I switched from letrozole to anastrozole about a month ago and can't say I've noticed any improvement in my side effects. Just woken for the 2nd time tonight in a puddle so not a happy bunny. The hot flashes in the day are easier to deal with than these awful night sweats. But by far and away the worst side effect for me is the awful pain in my joints, especially my wrists and thumb joints and more recently my knees. Kneeling down is agony. You say you have been on anastrozole for 2 years but how long did it take for the flushes and joint pain to go away? Also do you suffer from "brain fog"? I put my dreadful memory and general feeling of fuzziness down to chemo fog but have recently found out that it is very likely to be the drug. This seems to be backed up by the recent Davina McCall documentary about the menopause. It seems that oestrogen protects the brain and obviously we now have little or no oestrogen. Is this a worry for you too?

    Nice to have your company, have a good day, kind regards, Mog, x

Reply
  • Hi Silver, nice to hear from you. I switched from letrozole to anastrozole about a month ago and can't say I've noticed any improvement in my side effects. Just woken for the 2nd time tonight in a puddle so not a happy bunny. The hot flashes in the day are easier to deal with than these awful night sweats. But by far and away the worst side effect for me is the awful pain in my joints, especially my wrists and thumb joints and more recently my knees. Kneeling down is agony. You say you have been on anastrozole for 2 years but how long did it take for the flushes and joint pain to go away? Also do you suffer from "brain fog"? I put my dreadful memory and general feeling of fuzziness down to chemo fog but have recently found out that it is very likely to be the drug. This seems to be backed up by the recent Davina McCall documentary about the menopause. It seems that oestrogen protects the brain and obviously we now have little or no oestrogen. Is this a worry for you too?

    Nice to have your company, have a good day, kind regards, Mog, x

Children
  • Hello

    I am way past the menopause although still have occasional hot flushes I assume from the drug. It's the lack of eostrogen that's causing those symptons. The menopause caused brain fog and I feel for you coping with menopause as well as cancer treatment. I must watch the Davina McCall on catch up.As to the joint pain I had a little in my wrists and woke feeling stiff but apart from that not too bad For you it's the Consultants that really can give you any advice, maybe tweaking the drug and resolve these issues

     

     

    Silver x 

  • Hi Silverdays, I'm glad to hear that you have coped so well with your treatment and have only had a little pain in your wrists. This is exactly what I said to Mog initially. It varies so much from person to person. I agree that the one person in the best position to advise is her consultant, who has all her records to hand and I understand that she will be talking to him about it. Kind regards, Jolamine xx
  • Hi Silver, good to hear from you. Bit of confusion I think with my last post as I am way past a natural menopause and it is the anastrozole which is causing those symptoms now. I didn't have a menopause when I should've done as I switched straight from the pill to hrt so avoided the effects of lack of oestrogen. Now I wondering if the artificially high levels of oestrogen for so long, essentially my whole life, caused my cancer. I am really struggling with the pain in my wrists and hands. Living alone I don't have anyone to help and simple things like taking the top off the milk hurts a lot. It's pretty miserable. That being said it's the brain fog that concerns me the most and I shall be talking to my oncologist about it when I see him in June.

    Have a good day, kind regards, Mog, x