Useful. I have added it to my own notes with the date on it.
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Practice · Interactions · continued
Oral contraceptives and delayed emptying: what the data shows posts 31–60
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.
Confirming post #30 from a second method, which matters more than confirming it from a second person.
The reason oral contraceptives and delayed emptying keeps being re-asked is that the answer is conditional and people quote it without the condition. It is not that the answer is unknown.
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Post #32 describes the usual case. This is about the unusual one.
Oral contraceptives and delayed emptying is well covered in the tag pages, and the older discussions are better than the recent ones because they were argued out properly. Worth twenty minutes before adding to this one.
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b.jansen, post #17: Posting my oral contraceptives and delayed emptying numbers with the method attached so they can be discounted properly. Uncontrolled, unblinded, and collected by someone who wanted a particular answer. Go to post
The practical advice most consistently given by pharmacists here is to keep the timing of other oral medication consistent rather than to change it, because consistency is what makes a problem visible.
Where I would look next, rather than where I would stop.
Coming back to post #32, because the follow-up matters more than the original answer.
A methods point on oral contraceptives and delayed emptying rather than a substantive one: if the comparison is not like for like, the difference you are measuring is the difference in method.
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Post #35 is right about the mechanism and I think understates the practical bit.
Agreed on oral contraceptives and delayed emptying, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not, and the starting assumption is the part nobody states.
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Food interactions: most interactions are absorption interactions. Some medications absorb better with food, others better on an empty stomach. With an incretin agonist that already slows gastric emptying, food effects interact with the drug effect as well.
That is all I can say without guessing.
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e.pires, post #23: Reframing oral contraceptives and delayed emptying slightly, because I think the disagreement is about the question rather than the answer. If the question is "does it happen", yes. If it is "how often", nobody here knows. Go to post
Marking my uncertainty on oral contraceptives and delayed emptying explicitly. I am confident about the direction, much less confident about the size, and not confident at all that it generalises past the case in the first post.
d.eriksen, post #3: The opening post answers the question as asked. The question underneath it is different. The most defensible general position in this subcategory: identify the plausible mechanism, check whether it has been studied, and where it has not, say that rather than filling the gap. The general answer and the answer for your case may diverge… Go to post
Practical answer on oral contraceptives and delayed emptying, since the theoretical one is upthread: do the simplest check first, write down the result, and only then decide whether the complicated explanation is needed. It usually is not.
Anticoagulant questions come up regularly and are the clearest case for professional advice rather than discussion, because the consequence of being wrong is not gradual.
One of those cases where knowing the mechanism does not help the decision.
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A supplement is a drug for interaction purposes, and the fact that it is sold without a prescription tells you nothing about whether it interacts. The paperwork is usually worse rather than better.
Two people can read the same figure differently here and both be reasonable.
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f.amankwah, post #24: The documentation on oral contraceptives and delayed emptying is better than this thread and I say that as someone who has posted in the thread. Go to post
Understood, and I withdraw the assumption I opened with.
KStephanopoulos, post #35: Coming back to post #32, because the follow-up matters more than the original answer. A methods point on oral contraceptives and delayed emptying rather than a substantive one: if the comparison is not like for like, the difference you are measuring is the difference in method. Go to post
I had written a reply contradicting post #42 and deleted it. Here is what survived.
Research-use-only compounds have no interaction data of any kind, because interaction studies are done on medicines being developed for use in people.
A supplement is a drug for interaction purposes, and the fact that it is sold without a prescription tells you nothing about whether it interacts. The paperwork is usually worse rather than better.
I have written this out at length because the short version keeps being misread.
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n.rowntree, post #31: Useful. I have added it to my own notes with the date on it. Go to post
Post #44 is right about the mechanism and I think understates the practical bit.
On oral contraceptives and delayed emptying: the maintained page in the documentation commons covers the general case with citations and a review date, which is more reliable than any reply here including this one.
Coming back to post #47, because the follow-up matters more than the original answer.
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.
Not a strong opinion, just a consistent one.
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Taking oral contraceptives and delayed emptying seriously for a moment rather than deflecting: the honest position is that the community has observations and no controlled comparison, and those two things support very different sentences.
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I had read the opposite somewhere and cannot now find where, which tells me something.
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b.vanhecke, post #5: 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. Go to post
An honest declaration on oral contraceptives and delayed emptying: I have a prior here and it is strong enough that you should weight what I say downward. Stating it rather than hiding it.
Narrowing post #53, because the general version has more than one answer.
Delayed gastric emptying is the mechanism behind most of the plausible interactions in this class: anything whose absorption depends on how quickly the stomach empties can behave differently.
I would want the raw data before agreeing with my own summary of it.
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e.pires, post #23: Reframing oral contraceptives and delayed emptying slightly, because I think the disagreement is about the question rather than the answer. If the question is "does it happen", yes. If it is "how often", nobody here knows. Go to post
Small methodological point on oral contraceptives and delayed emptying: repeating a measurement is cheap and resolves most of what is being argued about here at no cost to anyone.
m.dumitru, post #11: Coming back to post #9, because the follow-up matters more than the original answer. A pharmacist can answer most questions in this subcategory in a few minutes with access to a proper interaction database, and that access is the thing a forum does not have. Go to post
Oral contraceptives and delayed emptying looks different depending on whether you are reading the primary literature or the summaries of it, and the difference is not in our favour.
I read post #53 twice before replying, because I had assumed the opposite.
The practical advice most consistently given by pharmacists here is to keep the timing of other oral medication consistent rather than to change it, because consistency is what makes a problem visible.
The right answer here may simply be that it has not been measured.
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Post #57 answers the question as asked. The question underneath it is different.
Research-use-only compounds have no interaction data of any kind, because interaction studies are done on medicines being developed for use in people.
Stating my assumptions rather than smuggling them in.
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Grateful for the specificity. Vague answers to this question are what sent me looking.
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