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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 Fri, Feb 28, 2025 at 6:39 AM 17 replies 1,487 viewsPage 4 of 4
BiostatsBrad
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Durham, NC
Feb 28, 2025 at 12:19 PM#16

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

Last edited: Feb 28, 2025 at 1:19 PM
19 0LindaRN_retired, tommy_boulder, hyun_seoul and 16 others
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wanda_boise
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Aug 2024
Boise, ID
Feb 28, 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.

25 0marco_milano, pam_columbus, nick_SD_fit and 22 others
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Dr.BariatricHTX
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Houston, TX
Feb 28, 2025 at 12:53 PM#18

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

21 4Dr.EM_Chicago, pete_RVA, CarlaRPh_TPA and 18 others
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Dr.PulmRoch
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Jun 2024
Rochester, MN
Feb 28, 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.

43 4DebRD_ATL, KristenIndy, MarkLI_maint and 40 others
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pete_nash
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Aug 2024
Nashville, TN
Feb 28, 2025 at 1:27 PM#20

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

12 19sarah.morrison, NeuroNate, JessicaH_TX and 9 others
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