1. It fits the form you were prescribed
GLP-1 medicines come in several forms, and the labels treat them differently. The Mounjaro® label lists single-dose pens, single-dose vials, multi-dose vials and a multi-dose KwikPen® [1]. Wegovy® comes as single-dose pens and syringes, a single-patient-use FlexTouch® pen holding four weekly doses, and tablets [2]. The current Ozempic® label lists pens with several weekly doses and single-dose prefilled syringes [3]. The Mounjaro® label also asks that you be trained for the specific form you receive, and read the Instructions for Use again if it changes [1].
Tablets add their own details. Rybelsus® and Ozempic® tablets are taken once a day on an empty stomach with a small amount of plain water, and the label asks for at least 30 minutes before food, drinks or other oral medicines [5]. Foundayo™ is a daily tablet taken with or without food [6]. An app should let you log the form you actually use and, for tablets, the time you took one.
2. It keeps exact dates and times
The labels’ rules are written in days and hours. An app that records the exact date and time of every dose, and lets you add a dose you forgot to log with the right time, keeps those questions answerable. A log that only says “done this week” does not. The table sets the timing rules side by side as the labels state them; what you do about a missed dose is a question for your prescriber or pharmacist.
| Medicine | If a dose is missed | Changing the dosing day | Injection sites |
|---|---|---|---|
| Ozempic® injection [3] | Within 5 days; after that, skip it and keep the usual day | At least 2 days (more than 48 hours) between two doses | A different spot each week within the same body region |
| Wegovy® injection [2] | Take it if the next dose is more than 2 days away, skip it if less; after 2 or more missed in a row, the label restarts the steps lower | Allowed if the last dose was 2 or more days earlier (Medication Guide) | Rotate with each injection |
| Wegovy® tablets [2] | Skip it and take the next one the following day | Daily tablet | Not applicable |
| Mounjaro® [1] | Within 4 days (96 hours); after that, skip it | At least 3 days (72 hours) between two doses | Rotate with each dose |
| Zepbound® [4] | Within 4 days (96 hours); after that, skip it | At least 3 days (72 hours) between two doses | Rotate with each dose |
| Rybelsus® [5] | Skip it and take the next one the following day | Daily tablet | Not applicable |
| Foundayo™ [6] | Take it as soon as possible without doubling the next; after 7 or more missed in a row, the label restarts the steps lower | Daily tablet | Not applicable |
3. It follows each pen or vial through its life
Multi-dose devices carry limits that have nothing to do with the dose itself. The Mounjaro® label says an opened multi-dose vial or KwikPen® is thrown away after 30 days at room temperature, 30 days after first use or after 4 weekly doses, even if medicine is left [1]. The Ozempic® label gives a pen 56 days after first use [3], and a Wegovy® FlexTouch® pen holds four doses [2].
A useful app counts the doses taken from each pen or vial, shows an expiry or use-by date next to it, and warns you before stock runs out. Remembering when you opened a pen is exactly the kind of fact that slips after a few weeks.
4. Reminders that actually reach you
A weekly shot is easy to miss because it is weekly. Look for reminders before the dose, at the time of the dose and after a missed dose, and check that they still come through when your phone is in a focus or do-not-disturb mode.
A good missed-dose reminder tells you a dose was not logged. It should not tell you what to do about it; the label and your prescriber do that.
5. Injection site rotation you can see
The Mounjaro®, Zepbound® and Wegovy® labels ask you to rotate injection sites with each dose, and the Ozempic® label asks for a different site each week within the same body region [1][2][3][4]. Rotation is hard to keep in your head over months.
The Ozempic® label adds a detail for people who also use insulin: the two are separate injections, and they may go in the same body region but not next to each other [3]. Look for a body map that records the site with each dose and shows the last one used, so you can see which areas have rested. The app should show where you injected, not tell you where to inject.
6. Room for side effects and weight
If a side effect troubles you or lingers, the Medication Guides want your healthcare provider to hear about it [3]. Short notes next to your dose history make that easier, especially when they record when a symptom started relative to the last dose. Weight, sleep, water and meals belong in the same place, so a reading can be seen in context.
7. It copes with a change of medicine or form
Changes are common: a pen becomes a vial, an injection becomes a tablet, or one product replaces another. The Wegovy® label has a section on moving between its injection and its tablets, and the Rybelsus® label covers moving from Ozempic® injection to tablets [2][5], and the Mounjaro® and Wegovy® labels ask for training on any new presentation [1][2].
A tracker should let you start a new program without erasing the old one, so your history stays in one place across the change. Whether and how to switch is your prescriber’s decision; the app’s job is to keep the record continuous.
8. Records you can take to an appointment
Check what an app can give you to share: a readable report with dates, times and sites, and a full export you can keep. A report should show what you logged, not draw conclusions from it. Missed doses, the timing of side effects and a dated weight series are usually what a clinician asks about.
9. Privacy questions worth asking
An app’s privacy policy should answer these questions in plain language. If it does not, that is an answer too.
- Where are your records kept: on your phone, or on a company server?
- Do you need an account to use it?
- What, if anything, is sent from your phone, and do you see it before it goes?
- Can you export your records, and delete them, when you choose?
- Does the app include advertising or analytics tools?
10. No dose advice, ever
The Ozempic® Medication Guide says to use the medicine exactly as your healthcare provider tells you [3]. A tracking app has no place suggesting a dose, a schedule or a change, and it should say so clearly.
That includes any AI features. An assistant that answers questions about your own logs can be useful; one that offers dosing guidance is not a tracking tool.
How PepLabo approaches each point
PepLabo logs single- and multi-dose vials and pens, cartridges, prefilled syringes and tablets, records the time and site of each dose on a front and back body map, and shows the last site and a weekly map where larger marks mean more frequent use. Reminders come 15 minutes before, at the scheduled time and 30 minutes after a missed dose; on iPhone the on-time and missed ones are Time Sensitive, and on Android they use exact alarms. A forgotten dose can be added later from dose history with the right time.
The vial shelf shows what is left in each vial, pen or pack and roughly how many doses remain, warns a week before an expiry date or the end of your own use period after reconstitution, and can remind you before stock runs out. Side-effect check-ins and daily notes on sleep, water, meals and weight sit on the same timeline.
Records stay on your phone and an account is optional; PepLabo runs no ads, analytics or tracking, and vial label scans are read on the device [7]. With Pro, PepLabo AI answers questions about your own records; you see and confirm what is sent first, and it declines dose and medical questions before they leave your phone. You can export all your data as a file without Pro, and Pro adds a PDF report. PepLabo never suggests a dose, a peptide or a program.
Ozempic®, Wegovy®, Rybelsus® and FlexTouch® are registered trademarks of Novo Nordisk A/S. Mounjaro®, Zepbound® and KwikPen® are registered trademarks and Foundayo™ is a trademark of Eli Lilly and Company. PepLabo is not affiliated with or endorsed by Novo Nordisk or Eli Lilly and Company.
