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ForumsOral GLP-1 AgonistsIs oral sema actually as effective as the injection version? — 12 month update

Is oral sema actually as effective as the injection version? — 12 month update

tommy_boulder Tue, Dec 16, 2025 at 3:17 AM 35 replies 1,548 viewsPage 1 of 7
tommy_boulder
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Dec 16, 2025 at 3:17 AM#1

On 25mg oral, four months in, and my results are closer to the low-dose injectable arm than to the numbers being quoted for 50mg.

What I am after is whether the fasting requirement is as strict in practice as the label implies, and what people actually see when they get it wrong.

Numbers rather than impressions, if you have them.

19 14paul_denver, TinaHashiRN, robert_kc and 16 others
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LarryQC_SD
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Dec 16, 2025 at 3:36 AM#2

Taking the question as asked, rather than the general version of it. Orforglipron is the more interesting oral story because it is not a peptide at all. Being a small molecule it does not need SNAC, does not need the fasting window, and has oral bioavailability in the tens of percent rather than about one.

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VanRx_Mike
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Dec 16, 2025 at 3:55 AM#3
LarryQC_SD said:
Orforglipron is the more interesting oral story because it is not a peptide at all.

LarryQC_SD has the substance of this right. The condition it depends on is worth stating. The absorption variability is real, but it partly averages out over weeks — the steady-state trough is less erratic than any single day would suggest. Where it bites is in the first fortnight, when people conclude the tablet does nothing.

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raj_cambridge
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Jun 2024
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Dec 16, 2025 at 4:14 AM#4
tommy_boulder said:
On 25mg oral, four months in, and my results are closer to the low-dose injectable arm than to the numbers being quoted for 50mg.

This matches mine closely enough to be worth saying so. The OASIS programme put 50mg oral in the same territory as 2.4mg injectable — around 15% mean weight loss — but it needed a dose 20 times larger to get there because almost none of the tablet is absorbed. The dose numbers are not comparable across routes and quoting them side by side confuses people.

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Dr.SportsMedIN
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Dec 16, 2025 at 5:58 AM#5

From the other side of the consultation, briefly. The mechanism and the magnitude are separate questions. Agreeing that something happens says nothing about whether it happens enough to act on.

Last edited: Dec 16, 2025 at 10:58 AM
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