Mid-cycle titration

Find it at Coaching → Mid-cycle titration. It helps with one awkward moment: you're part-way through a cycle, thinking about moving up a dose, and you don't want to wait for your next shot day. It's an estimate to bring to your prescriber, not a recommendation to act on alone.

Why a fresh full dose sits higher

Say you took 5 mg on Monday and it's Wednesday. A fresh 7.5 mg now stacks on four days' worth of what's still in you. But “the difference” (2.5 mg) isn't right either: that number is only correct by coincidence. The question the model answers is: what single dose would sit at roughly where a settled 7.5 mg does?

The two answers

Which one you want depends on what should happen to your shot day:

• Keep my shot day: a smaller top-up today, then your new dose on your normal day, as usual. Your schedule never moves.
• Make today my new shot day: a dose today that becomes day one of the new schedule.

Both aim at the same place: the level a settled cycle on the new dose sits at just before each shot. Land on that once and every shot afterwards keeps you there, so you reach the new dose properly instead of drifting up to it over six weeks.

Why the dose looks bigger than the gap

The “why this number” panel shows a gap to fill (say 2.1 mg) and then a much bigger dose (say 6.9 mg). That isn't a rounding error: they're different things. The gap is a blood level; the dose is an injection. Most of what you inject today has decayed by your next shot, so you have to inject roughly three times the gap to still be contributing it a week later. The panel shows that division in full.

It runs on your real shots

You don't type your history in: it reads your logged shots for that medication, using the half-life set on the medication itself. A missed shot, an early one, or a dose change mid-week all land in the answer automatically. It uses the same model as your medication-level graph, so the two always agree.

When it says no

It refuses more often than it answers, and those refusals are the point:

• Going down a dose: you're already above where the lower dose settles, so a bridge would push you the wrong way. The answer is to wait, not to inject. It tells you roughly how long.
• Your next shot is too close: bridging within a day of a scheduled shot stacks two doses together, and the maths gets wild as the gap shrinks. Wait for your normal day.
• The medication clears between shots: if there's no meaningful build-up, there's nothing to bridge, so it points you back to your new dose on your normal day.
• It would overshoot: if the plan would push your peak well above a settled cycle, it won't suggest it.

Every answer is checked by simulating four weeks of the actual curve, including the bridge and every scheduled shot after it, and taking the true maximum, rather than trusting a formula.

An estimate from your own logged shots. For personal tracking, not medical advice: a dose change is a conversation to have with your prescriber, and this is a tool for having that conversation, not for skipping it.