GLP-1 Injection Tracker

Log your dose, injection site, and weekly shot day.

By GLP Index editorial Updated July 16, 2026

Log each shot, rotate your sites, and never lose track of your weekly day.

Why log your injections

A GLP-1 injection tracker does three quiet but important jobs: it keeps you on your weekly day, it rotates your injection sites so you don’t develop lumps or irritation, and it gives you a record of side effects to spot patterns. Use it on screen or print a copy for your medicine drawer.

None of this is complicated, but all of it is easy to lose track of — especially in the early weeks when the routine is new and the doses are changing. A simple log removes the guesswork from “wait, did I already take it this week?” and “which side did I use last time?”

Rotating your injection sites

This is the part people most often neglect, and it matters. Injecting into the same spot week after week can cause irritation, bruising, and firm lumps (lipohypertrophy) that also make absorption less reliable. The fix is easy: rotate.

The three approved subcutaneous sites are:

  • Abdomen — at least two inches away from your navel, either side.
  • Front of the thighs.
  • Back of the upper arms.

Move at least an inch from your last injection each week. The tracker’s site column lets you see your rotation at a glance so you never double up on the same spot.

Staying on schedule

Consistency helps these drugs work and keeps side effects steadier. Two rules worth knowing:

  • Missed weekly dose: if your next scheduled dose is 4+ days away, take the missed one when you remember; if it’s sooner, skip it. Never stack two doses to “catch up” — that piles on nausea.
  • Changing your shot day: for weekly injections you can usually shift your day as long as it’s been at least 48–72 hours since your last dose (check your drug’s label). A log makes it obvious when a switch is safe.

Watching for patterns

The notes column is more useful than it looks. Logging side effects next to each dose helps you and your clinician see what’s actually happening — whether nausea tracks with dose increases (it usually does, and usually eases), whether a particular site bothers you, or whether symptoms are settling over time. That record turns a vague “I’ve been feeling off” into something specific and actionable at your next appointment.

Print or save this alongside the weight tracker and check your titration schedule so your logged doses match your plan. This is an organizational tool, not medical advice — always follow the instructions from your prescriber and pharmacy.

FAQ

Common questions

Where do you inject a GLP-1?

The three approved subcutaneous sites are the abdomen (at least two inches from the navel), the front of the thighs, and the back of the upper arms. Rotate between them and move at least an inch from your last spot each week to avoid irritation, bruising, and lumps. The tracker has a site column so you can see your rotation at a glance.

What if I miss my weekly shot?

For once-weekly GLP-1s, one rule covers it — if your next scheduled dose is 4 or more days (96 hours) away, take the missed dose when you remember; if it's sooner, skip it and stay on schedule. Never take two doses close together to catch up. Daily drugs like Saxenda simply skip and resume the next day. Check your specific drug's instructions.

Can I change my injection day?

Usually yes, for weekly injections — you can move your shot day as long as at least 48–72 hours have passed since your last dose (check your drug's label). Logging your shots makes it easy to see when a switch is safe. Confirm with your pharmacist or clinician if unsure.

How should I store my pen?

Most GLP-1 pens are kept refrigerated until first use, after which many can be stored at room temperature for a set number of days — the exact rules vary by product. Never freeze them, and don't use a pen that's been frozen or left in heat. Follow the storage instructions that came with your specific medication.

Sources

What this is based on

  1. Wegovy (semaglutide) Instructions for Use — Injection and Storage — U.S. Food & Drug Administration
  2. Zepbound (tirzepatide) Instructions for Use — U.S. Food & Drug Administration

This tool is for general education only and is not medical advice. Results are estimates based on the numbers you enter and published clinical averages; individual results vary. Talk to a licensed healthcare provider about your own situation. Medical disclaimer

Get the complete GLP‑1 tracking kit

Every tracker on this page, plus the injection log and measurement sheet — one printable PDF, free.

Email capture coming soon.