Medication Schedule Builder

Work out evenly spaced dose times across your waking hours from how many doses a day you take, plus the gap between doses.

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Input
Output
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About medication schedule builder

Medication Schedule Builder keeps its state in memory and nowhere else. That is why it forgets everything on reload, and why it cannot leak anything.

Everything after the first page load is local. Pull the network cable mid-edit and the tool carries on as though nothing happened.

You will find it under Health, alongside 18 other tools for the same sort of job.

Runs in this tab, so nothing you type is uploaded.

How to use it

01
Start it
Every control is on the tool itself. Keyboard shortcuts, where there are any, are listed beside it.
02
Watch it run
It updates in the page as you go. Nothing is sent anywhere, so it keeps working with the network off.
03
Close when done
Nothing is stored between visits. Reloading gives you a clean start rather than picking up where you left off.

Examples

Three times a day, 7am to 11pm, with food
Doses spread evenly from waking to bedtime
Input
dosesPerDay: 3
wakingHour: 7
sleepingHour: 23
withFood: true
Output
Dose times: 07:00, 15:00, 23:00
Gap between doses hours: 8
Food instruction: Take each dose with food.

Questions

Does Medication Schedule Builder work offline?+

Yes. It is JavaScript running in this tab, so once the page has loaded it needs nothing further from the network. Put the machine in flight mode and it carries on. Nothing you do here is sent anywhere, because there is nowhere for it to go.

Does it remember anything between visits?+

No. Reload the page and it starts from nothing. There is no account, no saved state and no cookie holding your last session. That is a deliberate trade: it cannot lose your data because it never keeps any.

Is it accurate?+

Timing comes from performance.now(), the high resolution clock the browser provides, rather than from setInterval, which drifts by a few milliseconds every tick and compounds over minutes. What can still shift things is the browser throttling a tab in the background, so leave it visible if the timing matters.

Does it make a sound?+

Where a sound makes sense, it is generated with the Web Audio API rather than loaded as a file, so there is nothing to download and nothing to block. Browsers refuse to start audio until you have interacted with the page, which is why the first press is what switches it on.

Can I use Medication Schedule Builder on a phone?+

Yes. The controls are sized for touch and the layout collapses to one column on a narrow screen. Bear in mind that a phone locking its screen will suspend the page, and timing stops with it.