How to remember which injection site you used last for weekly GLP-1 shots

With a weekly injection, seven days is long enough to forget where the last one went. The fix is to write the site down at the moment you inject, in the same place every week, and to look at that note before the next shot. A body map on paper, a note in your calendar or a tracker app that logs the site with each injection all work; the habit matters more than the tool.

Not medical advice. Which body areas you can use, and how to rotate between them, come from your medication's instructions and your clinician or pharmacist. This guide only covers how to keep track.

Step 1: Get your rotation from the right source

The leaflet that comes with your pen and the person who showed you how to inject are the sources for which areas you may use. Write the allowed areas down once, in your own words, for example "abdomen left, abdomen right, left thigh, right thigh", in the order you were taught to rotate. That list is what you track against.

Step 2: Choose one way to record the site

A paper body map. Draw a simple outline (or print one) and label the areas from step 1. After each injection, write the date in the area you used. Keep it with your pens. At a glance you can see the most recent date and pick the next area in your rotation.

A calendar note. If you already have a repeating calendar event for injection day, add the site to that day's note right after injecting: "Left abdomen". Next week, open last week's event before you start. It is free and always on your phone; it does not show all sites at once.

A note on the pen box. Some people stick a small label on the box and write the date and site there. It is quick but easy to lose when you start a new box.

A tracker app. An injection log app keeps the site with the date, dose and any symptoms, so the record is complete without extra effort. Apps differ: some, like Drop, show a visual site map with rotation warnings and next-site suggestions (App Store); others simply record the site you choose. See the Shotsy alternatives page for a comparison.

Step 3: Make it part of the injection routine

Before injecting, look at your record and note the last site.
Choose the next area in your rotation.
Inject as instructed.
Record the site straight away, before you put the pen away.

If you are interrupted and forget step 4, write "site not recorded" rather than guessing later. An honest gap is more useful than a wrong entry.

Step 4: Note anything unusual about the site

If a site was sore, bruised or looked different, add a short note with the date. That gives you specifics to describe to your clinician or pharmacist, who can tell you what to do about it.

Logging sites in Ozempre

Ozempre is an iPhone log for GLP-1 routines that records the injection site with every entry:

After each injection, add an entry with the date, dose details as prescribed, the injection site, and any symptoms or notes.
Turn on reminders for injection day.
Before the next shot, open the calendar view, find your last entry and check the site you recorded.
Before an appointment, share a chosen period as a CSV file so your clinician can see dates, doses, sites, symptoms and weight together.

Ozempre records what you enter; it does not choose a site for you or give rotation advice, so keep following the instructions you were given. It is iPhone only, available in 44 languages, free to download, with Ozempre Premium as a subscription. For a fuller record to bring to visits, see how to keep a GLP-1 injection log for your doctor.

Quick checklist

Allowed areas and rotation order written down from your instructions
One place to record the site, used every week
Look at the last site before injecting
Record the new site right after injecting
Note anything unusual and mention it at your next visit