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I took Reclast last January and had severe belly cramps, headaches,

Osteoporosis & Bone Health | Last Active: Dec 30, 2024 | Replies (10)
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@annar

Is it normal for this side effect to last 2/3 weeks or so?

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Replies to "Is it normal for this side effect to last 2/3 weeks or so?"
windyshores | @windyshores | Dec 30, 2024

@annar yes the acute phase reaction can apparently be days to weeks. The APR is usually a few days. Mine was 10, and fever for 7 days. I have read about 3 weeks. GI effects are listed as part of an APR. Again I hope this is true for you since the APR ends! (I also wonder if GI effect could persist a bit after the acute phase reaction is over-???Your doctor might know.)

Interestingly, I just found this on the NIH site about study done on Japan:

"Patients with APRs showed significantly higher increases in total hip BMD at 6 and 12 months and larger reductions in BTMs vs patients without APRs. "

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