[Meta] the tirzepatide rule is doing its job and people should stop complaining
the tirzepatide rule is doing its job and people should stop complaining, and it will stay as it is unless somebody makes the case to change it. The four-week interval in the label is a minimum. Nothing about the pharmacology requires you to step on schedule, and the trials stepped on a calendar because trials have…
The step schedule question, answered properly, because it comes up weekly.
The label sets a minimum interval of four weeks between increases. That is a floor on how fast you may go, and it exists because tolerability, not efficacy, is what limits most people. There is nothing in the pharmacology that says you must increase at four weeks, or at eight, or ever.
What decides it in practice is whether the effect you want is still there. If appetite is quiet and the trend is going the right way, the dose is doing its job. If both have genuinely gone flat for six weeks or more, that is a conversation worth having with someone who knows your history.
SURMOUNT-1 ran 72 weeks with the top arm around 21% mean body weight change. SURPASS is the diabetes programme and reports glycaemic endpoints, so quoting the two interchangeably is a category error.
2.5mg is a four-week starting dose, not a maintenance dose. Worth being precise since people search these threads.
Vials and pens carry the same molecule; what differs is fill volume, device tolerance and whether you are doing your own arithmetic. Neither is inherently more accurate.
Correction to my own post above — I said 2.5mg and I have been on 15mg since the spring. Same argument, wrong number.
if 7.5 is working, 10 is not automatically better
Right. And the sema-to-tirz "conversion" people post is invented. There is no published equivalence.
Right.
Not sure about this bit. The GIP arm being real does not tell you that it is what caused your particular week.
Cosigning the four-week thing. It is a minimum interval, and treating it as a schedule to keep up with is how people end up miserable at 12.5.
Cosigning the four-week thing.
cormac_pereira is right that the two molecules are not interchangeable. There is no published conversion and the ones circulating are invented.