Choosing not to take Tamoxifen

Has anyone here decided not to take Tamoxifen?  If everything I've been through, this is the part that I have found the most terrifying.  I can't even look at the packet without crying.  Since they told me I would have to take them I have felt like my life was over, like I would never feel normal or happy again.  It's only since I've considered not taking them at all that I've felt a glimmer of hope.

Some background info on me - I'm 37, diagnosed with ER+ (8/8) PR+ (8/8) HER2 - BC last August.  I had mastitis after the birth of my first child and breastfeeding was going badly when I felt a lump.  The lump I felt was actually a milk cyst, the cancer was behind it.  27mm Grade 2 tumour, clear margins, 1 macromet and 1 micromet in sentinel nodes so they removed the rest and found nothing in any of them.  CT scan of organs clear and bone scan clear.  I had 4xEC and 4xpaclitaxel chemo, then 10x radiotherapy.

My mum had ER+ breast cancer at 37 as well, treated with surgery, chemo and radiotherapy.  She never took Tamoxifen as her oncologist didn't recommend it but she can't remember why that was.  It hasn't, touch wood, returned and it's been over 30 years.  We have had genetic testing and it seems it's just bad luck not genetics.

I was extremely depressed when I was pregnant because of hormones.  Any hormonal birth control I've ever briefly taken has made me anxious and depressed.  I have a tendency towards negative thinking and have suffered from eating disorders/orthorexia and body dysmorphia regarding my stomach.  I just know that Tamoxifen will undo all the work I have done to overcome my eating/body image issues and low mood.  I am not willing to take anti depressants again as they make me gain weight and trigger the eating issues - I have a daughter now and I do not want to pass this nonsense on to her.  I also don't want her growing up with a moody, miserable mum.  Exercise is really important to me and I was out on my bike or running throughout chemo and radio - if Tamoxifen robs me of that it'll have a dramatic impact on my quality of life, it'll stop me doing all the things I love.

I just want to go back to normal.  I don't want a daily reminder of cancer, I don't want the side effects, I don't want the fear and guilt and tears I just want to move on and live my life and be a good mother and wife and friend.  No one can tell me the actual benefits for me and I can't find the data I want anywhere.  It's all very well saying "x% reduction in risk" but x% of what?!  A 50% reduction of a 100% chance the cancer will come back is worth having, a 50% reduction of a 1% chance isn't (in my opinion).  The predict tool shows a 3% benefit, but, again, what's that based on?  How old were the women in the study? What chemo did they have?  How active are they?  I'm not a risk taker in life usually, I prefer to make decisions based on data but the data I want isn't out there and I think I would rather take the unquantifiable increase in risk over the definite significant reduction in my quality of life and impact on my (already shaky) mental health.  I am very active, I eat well, I drink significantly less alcohol now than I used to before I had my daughter and I plan to cut it down even more.  Surely that gives me some protection as well?

That was a long post, sorry!  I guess what I'm asking is - has anyone else wrestled with this, did you decide to refuse them and are you happy with that decision?

 

  • Worry 

    I had breast cancer last July 

    started tamoxifen in November to be honest I have had minor side effects but it does come down to the brand I take I took another brand for a few days instantly had horrid effects.

    I can see your point it's definitely personal choice but for me any prevention of the C returning is worth a try I thought I give it a month and that was my plan hete I am 8 months on and feel still amazing 

    good luck in what you decide lovely ️

  • Hi Worry85

    i wondered how you’re doing and what decision you made. I reacted exactly the same when my Oncologist suggested Tamoxifen. He warned me there were risks and referred me to the CRUK website to view the side effects. When I read them I was distraught like you. There were so many side effects, minimal information on the specific benefits and I just kept hearing that it’s “belt and braces” against anything returning. I spoke to my Oncologist again and asked him if his advice was to take a drug that would hopefully prevent breast cancer returning yet can cause other cancers. I couldn’t get my head around this really and struggled. In the end, I decided to go ahead, worried for what if it did return and I hadn’t done everything I could - that would be a hard one.

    I have been on Tamoxifen for a year. My side effects have been minimal although I have recently started with pelvic pain so worried there maybe something to investigate there. 

    i hope you are doing ok and you made the right decision for you.

    Lucy x

  • Lucy 

    I have been on these since nov my joints are now starting to ache bad do you have this and if so do you take anything to help ? 

  • Hi Lara

    i have heard about joint pain - again one of the many many side effects of Tamoxifen - but haven’t had any as yet. My pelvic pain is new and having researched itt, Tamoxifen could be the cause. 
    Im sure someone on here will have had the joint pain you mention and hopefully you will get a reply. .

    I hope it eases for you.

    xx

  • I take Letrezole,this is for older women who are already in the menopause. My side effects are also achy bones and muscle ache . But that isn’t too bad . Xx

  • Hi. I have also chosen not to take Tamoxifen even though I had a local recurrence. I have posted separately about this on here:  The right to refuse Tamoxifen 

    Please remember Tamoxifen is not a guarantee and it is your decision whether to take it or not. The side effects from one tablet were horrific for me and Oncology this time supported my decision not to take it. I hope the NHS are not trying to bully you into taking it like they did with me.