u/units_not_mg

Cosigning. The appetite change and the scale change ran about three weeks apart for me too.

Scotland, Wales and Northern Ireland have their own arrangements. An answer that begins with "in England" should say so, and most of the confusion here comes from answers that do not.

Working has to be shown on arithmetic posts. Added a note asking for it rather than removing this one.

Removed the dose recommendation. You can describe what you did; you cannot tell somebody else what to take.

Not convinced. You changed the dose and the week at the same time, so you cannot attribute the change to either.

Bacteriostatic or plain sterile water?

Nothing on this board is medical advice, and rate, target and method are questions for somebody who knows your history.

Not quite. Bacteriostatic and sterile water are not interchangeable for a multi-draw vial, and the difference is the preservative.

The mental model that finally made this click for me: there are two curves, and people watch the wrong one.

The first is exposure, which is set by the dose and smoothed by a week-long half-life. It changes when you change the dose and then settles over about a month. The second is body weight, which is exposure filtered through appetite, food, water, sleep, training and the scale itself, and which moves in steps rather than a line.

Almost every "it stopped working" post is somebody watching curve two over a fortnight and drawing conclusions about curve one. If the appetite effect is still there, exposure is fine. Wait the month.

The weekly interval comes out of the half-life — roughly a week — so you are on a smooth curve rather than a series of spikes. That is also why moving your day slightly does very little.

Not convinced.

Disagree with this specific line. A pause at 1.0mg is not evidence that 1.0mg has stopped working.

Removed the dose recommendation. You can describe what you did; you cannot tell somebody else what to take.

do the arithmetic before you reconstitute, not while holding a syringe

Correcting myself above: I wrote the concentration the wrong way up. Mass over volume, not volume over mass.

Discharged at goal back to the GP, who would not continue it. Nobody had mentioned that this was how it ends.

The whole calculation, once, with real numbers.

You have a 10mg vial. You add 3mL of bacteriostatic water. Concentration is mass over volume: 3.33mg/mL. A U-100 insulin syringe is graduated at 100 units per millilitre, so one unit is 0.01mL.

To draw 2mg you need 2 divided by 3.33 millilitres, which is 60 units on the barrel. Write "3.33mg/mL" on the vial in marker before you put it away, and you never have to do this again for that vial.

Two years and four months on a tier 3 list. Referral date and every letter kept, which turned out to matter when the service reorganised.

Correction: that gives 30 units, not what you have written. 15mg into 3mL is 5mg/mL and the division follows from there.

Working has to be shown on arithmetic posts. Added a note asking for it rather than removing this one.

Corrected the concentration in the title, which contradicted the body. Nothing else touched.

celebrate the boring milestones, they are the durable ones

more water is not more drug, it is the same drug in a bigger volume

ahmed_rasmussen has the units point exactly right. They are a volume on the barrel and nothing else.

Not convinced. You changed the dose and the week at the same time, so you cannot attribute the change to either.

Aim the stream down the wall of the vial rather than into the cake. Reconstitution is a solubility problem, not a mixing problem, and mechanical shear does nothing helpful.

Left up and flaired Explainer — the numbers in this one check out.

Push back: a private prescription is a separate route, not a shortcut through the NHS queue.

the food noise going quiet is the effect people actually describe

Standard reminder: no personal titration plans for other members, and no medical advice. Everything else is fine.

This. The monthly pricing tracker is the most useful thing on this board and it works because nobody is allowed to link anything.

protein first, then everything else gets easier

Removed the dose recommendation. You can describe what you did; you cannot tell somebody else what to take.

Leaving this up. It is a check-in, it has numbers, and it is honest about being one person.

Same.

lucia_balogun is right that the clothes tell you before the scale does.

a U-100 syringe reads 100 units to the millilitre, every time

Right — the volume you add is the only variable you control here, and the cake does not change it meaningfully.

Adding more water does not change how much peptide is in the vial. It changes the concentration, which changes the volume you draw for the same amount. That is the entire relationship.

Adding more water does not change how much peptide is in the vial. It changes the concentration, which changes the volume you draw for the same amount. That is the entire relationship.

What timeframe is that over?

do the arithmetic before you reconstitute, not while holding a syringe