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Evidence-based GLP-1 & peptide discussion since 2023
ForumsCOA & Analytical TestingBatch-to-batch purity variation — looking for input Page 4

Batch-to-batch purity variation — looking for input

Dr.EndoIndy Mon, May 26, 2025 at 6:39 AM 17 replies 1,487 viewsPage 4 of 4
BiostatsBrad
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Durham, NC
May 26, 2025 at 12:19 PM#16

Congrats Dr.PathRoch!! Keep going — you're doing incredible. 🎉

Last edited: May 26, 2025 at 1:19 PM
26 17LindaRN_retired, tommy_boulder, hyun_seoul and 23 others
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wanda_boise
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Boise, ID
May 26, 2025 at 12:36 PM#17

Dr.EndoIndy's experience with Batch-to-batch purity resonates deeply with mine. I went through almost the identical process — starting dose, titration timeline, side effects, everything.

The main difference: I had more GI issues initially. But the overall trajectory has been remarkably similar. Down 49 lbs in 14 months.

One thing I would add that Dr.EndoIndy did not mention: insurance coverage was a major hurdle.

47 22marco_milano, pam_columbus, nick_SD_fit and 44 others
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Dr.BariatricHTX
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May 26, 2025 at 12:53 PM#18

Bookmarked 📌 The Batch-to-batch info in this thread is essential. Coming back to this for sure.

19 22Dr.EM_Chicago, pete_RVA, CarlaRPh_TPA and 16 others
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Dr.PulmRoch
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Rochester, MN
May 26, 2025 at 1:10 PM#19

Clinical perspective on Batch-to-batch purity variation looking:

I have managed roughly 300 patients on GLP-1 therapy and this topic comes up frequently. What the data shows — and what I see in practice — is that the medication works best as part of a comprehensive approach.

For this specific question, I would recommend: getting comprehensive baseline labs first.

40 0DebRD_ATL, KristenIndy, MarkLI_maint and 37 others
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pete_nash
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Nashville, TN
May 26, 2025 at 1:27 PM#20

Following this thread closely. Batch-to-batch purity is something I'm actively working through.

12 4sarah.morrison, NeuroNate, JessicaH_TX and 9 others
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