Tamoxifen and tailbone/lower back pain

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Dskvarla
Dskvarla Member Posts: 7
edited August 2018 in Hormonal Therapy - Before, During, and After

I started taking tamoxifen a week ago. I take 10mg twice a day. I noticed that my tailbone or the area surrounding it is sore. It’s more like a dull aching pain. My lower back hurts too but that has always hurt. It just seems to be getting worse though. It radiates from my lower back down into my sciatica.

Has anyone else experienced issues with their tailbone and/or lower back hurting? I know when i was pregnant I had similar pain in my tailbone but that was due to the ligaments surrounding it being loose due to the pregnancy hormones. Is whatever is in tamoxifen effecting our hormones?

By the way I’m 34 (as of this Friday). I’m an active person. I run a few times a week. So I’m not out of shape. There’s no reason i should be in this much pain!

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  • vampeyes
    vampeyes Member Posts: 1,227
    edited August 2018

    Hi Dskvarla, I have lower back pain as well, but didn't think it was the Tamoxifen causing it till now. Mine started over a month ago and won't let up, DH thinks it is because I am back working and I am a house cleaner. I am 42 btw, I use to be active till cancer, now I am just constantly weak. I started Tamxoifen March 1, took a few weeks off in May and went back on a different brand in hopes the SEs would be better. I have tried yoga for my back and it feels good, but doesn't take the pain away. I am hoping to get to a chiropractor soon and see if that makes any difference.

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  • NotVeryBrave
    NotVeryBrave Member Posts: 1,287
    edited August 2018

    I'm thinking that it could be any of these things. Tamoxifen does have some increasing effects of Estrogen in some areas while also causing some blocking of Estrogen in others so the hormone possibility is valid. And returning to work with added physical activity could cause strain to the area.

    I've been dealing with tailbone pain for about 6 weeks or so. Finally saw PCP last week because it was starting to hurt even when laying in bad. He sent me for an xray which was normal. So ... apparently it's pretty common to have this pain without any injury. His recommendation? Low dose anti-inflammatories for 2 weeks.

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  • Michelle_in_cornland
    Michelle_in_cornland Member Posts: 1,689
    edited August 2018

    Avoid sitting for long periods of time, because that will compress your lower back. Stretch out on a hard floor and do the hip twists to create mobility in your spine. I have a "back stretcher" that gets pulled out when I have low back pain. Make sure that you don't have anything vaginal //yeast// etc. going on, because that can create back pain as well. I use acupuncture when everything else fails. But, actually, a combination of things....magnesium tablets, magnesium soaks, stretching, massage helps relieve acute issues.

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