← Return to Forteo (teriparatide) followed by HRT: My Experience

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Profile picture for drsuefowler @drsuefowler

Thanks so much @mayblin for your response. Unfortunately, my doctors don't seem to know as much as I do about this. I see my PCP next week and will get her opinion. Maybe I could get an appointment with the PA who suggested estrogen in the first place, but wouldn't prescribe it. The estrogen is prescribed by a functional physician, so I could ask her. My endocrinologists will just tell me to take Evenity, Prolia or Reclast, but I will ask the one who has mychart. From what you wrote, it is good that my CTX went down not up.

I am considering taking more calcium, since my blood level went down to 91 from 94. Also, I am considering taking Strontium again. My first bone marker results on 12/23 were P1NP 78 and CTX 519. At that time, I had been on 20 mcg, 2 clicks, for a month and 300 mg of Strontium citrate for a year. That was a better ratio than what I have now, 38 and 371.

I also wonder if the progesterone cream is lowering the influence of estrogen. If I stopped using the cream, would that lower the CTX? It does help me sleep.

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Replies to "Thanks so much @mayblin for your response. Unfortunately, my doctors don't seem to know as much..."

@drsuefowler, no doubt estrogen is the primary driver for you right now. While there have been studies on progesterone’s effect on osteoblasts years ago, the effects are samll and probably not strong enough to override estrogen’s role. Since it helps you sleep, which is vital for bone health - my opinion is it’s probably best to keep it - double check with your team physicians.

Here are two references on using BTMs as a guide if you want to see the 'maintenance' benchmarks researchers are using:
https://pmc.ncbi.nlm.nih.gov/articles/PMC12064614/
https://academic.oup.com/jbmrplus/article/6/6/e10633/7479596
A move from 9.4 to 9.1 in blood calcium level could be just normal physiological variation. However, getting sufficient calcium through natural food source rather than supplements is always a good idea, especially given the ongoing debates around cvd risk with high-dose supplementation. And im sure you are aware the fact that strontium distorts DXA results. If you're trying to get a clear picture of how well the HRT is maintaining your Tymlos gains, adding strontium might make your future data harder to interpret