Practice · Interactions

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Practice › Interactions insulin metformin hypoglycaemia

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j.mwangiTL4 Moderator22 Feb 2026#1

Community wiki post. Any member at trust level 3 or above can edit this post; every edit is recorded. Last edited by mira.patel on 3 Apr 2026.

3 Apr 2026 — j.mwangi: Plain-language pass on the opening paragraph.
3 Apr 2026 — mira.patel: Corrected an arithmetic slip in the second example.

Editors: j.mwangi, mira.patel, hana.sato

Staff post. Actions described here are recorded in the public moderation log and may be challenged in Meta.

Drug, supplement and food interactions — separating timing inconveniences from clinically important ones.

This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and a note. If the scope described here has drifted from what actually gets posted, edit it rather than starting a topic about it.

What belongs here

Questions specific to interactions, with the units and the context stated.
Reports and datasets, with the collection method stated.
Disagreement about the substance, conducted in public.

What belongs elsewhere

Anything urgent belongs in Safety, immediately, and not here.
Anything about how this site works belongs in Meta.
Requests for a maintained page belong in Wiki requests.

Before posting, it is worth checking the documentation commons and this category's tag pages. A great deal of what gets asked here has a maintained answer with a review date on it, which is more reliable than a two-year-old reply.

0 likes 5mo

KLindqvistTL4 Moderator11 Mar 2026#2

Staff post. Actions described here are recorded in the public moderation log and may be challenged in Meta.

Moderation notes for this category, so that nothing about how it is run is a surprise.

Topics get moved into and out of here regularly. A move is not a judgement — the category tree is not obvious from outside and putting a question in the wrong place is expected. When I move something I say so in the topic and the action appears in the public log with the guideline cited.

The two guidelines that come up most often in this category are R2, on supplying a source when asked, and R7, on category placement. Neither is used punitively.

25 likes 5mo

c.wijnbergTL2Member23 Mar 2026#3

As a member rather than staff: the most useful thing I did when I started reading this category was to work through the tag pages rather than the topic list. The topic list shows you what is recent. The tags show you what is settled.

12 likes 4mo

da.bakkerTL2 Moderator3 Apr 2026#4

Suggestion for the wiki post above: it would be worth linking the two or three most-referenced topics in this category directly, since new members reliably ask for exactly those. Happy to make the edit myself if nobody objects, with a revision note.

4 likes 4mo

m.steinerTL2 Moderator13 Apr 2026#5

Alcohol: no absolute contraindication but it raises gastrointestinal irritation risk and this drug class already does that. The conservative position during titration is to limit it.

0 likes 3mo

bias_varianceTL4Biostatistician22 Apr 2026#6

Supplements and herbs: many have no established interaction. Some do. If you are taking something unusual, checking a reference (like a pharmacist) is more useful than guessing from forum discussion.

18 likes 3mo

j.moreauTL2 Moderator1 May 2026#7

j.mwangi, post #1: Drug, supplement and food interactions — separating timing inconveniences from clinically important ones. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and a note. If the scope described here has drifted from what actually gets posted, edit it rather than… Go to post

Two things before anyone answers the substance.

First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound.

7 likes in reply to #1 3mo

impurity_tableTL3Analytical chemist10 May 2026#8

post #7 answers the question as asked. The question underneath it is different.

Oral medications versus time: if you take an oral medication 30 minutes before semaglutide (which slows gastric emptying), the delayed stomach emptying affects when and where the oral medication is absorbed. Separating by a larger interval (1 to 2 hours) usually resolves this.

1 like 3mo

r.nakamuraTL2 Moderator18 May 2026#9

I read post #7 twice before replying, because I had assumed the opposite.

Sulfonylureas and meglitinides: these agents stimulate insulin release and carry hypoglycemia risk. Combining them with semaglutide or tirzepatide requires dose adjustment of the secretagogue and close monitoring. The combination is not contraindicated but requires active management.

26 likes 2mo

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