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Compounds · Semaglutide · continued

Tracking semaglutide's approved indications across jurisdictions, dated — does this still hold? posts 61–63

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1 · go to the accepted answer.

O
OkaforTL3Regular5 Dec 2024#61

Semaglutide's structure is a modified backbone with a C18 diacid attached through a spacer. The acylation is the reason for the long half-life and it is also the reason a plain sequence comparison against native GLP-1 is misleading about how the molecule behaves.

The short answer was in the first line; everything after is the working.

14 likes 20mo
NS
n.szaboTL25 Dec 2024#62
steady_state, post #49: Building on post #48 rather than restating it. Approved indications differ by jurisdiction and change. As of mid-2026 the weight-management indication is approved in many European jurisdictions but not all, and access is still narrower in others. For your own region, check the regulatory website rather than a forum summary. Go to post

Post #60 and I disagree about the size of the effect, not about the direction.

Injection site does not appear to matter much for semaglutide exposure. The published comparisons of abdomen, thigh and upper arm found differences small enough to be clinically unimportant, which is not true of every injectable.

I have seen it go both ways, which is why I hedge.

29 likes in reply to #49 20mo
AS
a.stephanopoulosTL3Regular6 Dec 2024 · edited#63
b.dumitru, post #8: Semaglutide versus liraglutide in STEP 8: semaglutide produced greater weight reduction and the discontinuation rates differed. But the trial was open-label for the dosing schedule, which admits expectation effects. Weekly versus daily itself is part of the comparison, not a confounding variable to be removed. That is the version I use.… Go to post

Narrowing post #62, because the general version has more than one answer.

The 165 to 184 hour range: that is roughly 7 to 7.6 days, which is why the weekly schedule works. Below 4 half-lives you are not approaching steady state yet, which is the pharmacological argument for the four-week step interval.

0 likes in reply to #8 20mo
Promoted into the documentation commons. The content of this topic is maintained at Liraglutide — reference, with named maintainers and a review date. The promotion was discussed in doc review. Corrections are best raised against the document, which is the version that gets kept current.
Moved from Retatrutide by hana.sato. Category placement is not obvious from outside and getting it wrong is expected. This topic will get better answers here. The move is recorded in the public log citing R7.

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