In this guide
An injection log needs four fields: date and time, medication, site and a note. Four manufacturers' own tracker sheets share the same core of date, site and notes. In our view, a template that asks for ten things is a log that is easy to quit.
The four fields that carry the log
Date and time. Medication. Site. A note. That is the whole template, and you can paste it into paper or a notes app as it stands.
- Date and time: when you injected, written the same way each time.
- Medication: the name on the label.
- Site: the same words every time, such as your left outer thigh.
- Note: one line about anything you want to find later.
Our view is that every added column is another reason to stop filling the log in. That is a design opinion, not a measured result, and we have not tested it. Apply one test instead: if a field does not help you answer "what did I do, where and when" on the next injection day, cut it.
The log records what happened. It does not advise. It never says which site or which amount comes next, and neither does this post.
What four manufacturers' tracker sheets ask for
Each of these sheets covers one product, so none needs a medication column. The pattern is still instructive: they converge on a date, a site and a place for notes.
- Arcalyst injection tracker: Date: Yes; Time: Only if you write it in notes; Site: A letter from a body diagram; Notes: Yes
- Rebif MS treatment tracker: Date: Yes; Time: Yes; Site: Front and back body diagrams; Notes: Yes
- Zymfentra dosing diary: Date: Yes; Time: No; Site: A letter from a body diagram; Notes: Yes
- Haegarda weekly tracker: Date: Yes; Time: Yes, with AM or PM; Site: Yes, marked on a diagram; Notes: Yes
The Arcalyst injection tracker has three entry columns: date, injection site and notes. It offers time of day as an example of what to put in notes, which makes time optional, not a column.
The Rebif tracker gives each injection a date, a time, front and back body diagrams and a yes-or-no question about an injection-site reaction, and it has a notes area. The Zymfentra diary has four columns on each page: injection number, site, date and notes. The Haegarda weekly tracker asks for date, time with AM or PM, an injection site to mark, a space for vial labels and notes.
Three of the four add extras, such as Rebif's reaction question, Haegarda's vial labels and Zymfentra's preprinted injection numbers. Those extras belong to a specific product and a specific prescriber. If your prescriber hands you a sheet like one of these, use it. Our four fields are for everyone else, and for the person who needs one log across several products.
What these sheets show is limited. They show what four manufacturers chose to ask. They do not show that any layout makes people keep a log longer, and none of the sheets claims it.
Why the amount stays out
Our template has no amount column. The amount comes from your prescription label and your prescriber's instructions. A second copy in your log adds a place for it to be wrong and does nothing to show when and where.
The entry rows of these sheets leave it out. The Zymfentra diary does ask for a dose line, once, on its personal-information page, and not on each injection row. The Arcalyst, Rebif and Haegarda entry rows have no such field.
This post gives no amounts, from labels or anywhere else. The site and the dose are yours to choose, with your prescriber. If something in your own log makes you unsure what your instructions say, it is fine to stop and talk to your prescriber before the next injection.
Two medications on different rhythms
Say one medication is weekly and the other is every few days. You have two options: one log with the medication column, or one log per medication.
We recommend one log. On any injection day you want to see the last several days at once, and one list sorted by date does that. The medication column is already one of the template's four fields, so it costs nothing extra. Different rhythms stop mattering because each row carries its own date.
Two logs make sense if you carry a separate sheet for each medication, such as a manufacturer's own tracker. They also make sense if a clinician asked you to keep them apart. The cost is that you read two lists to see one week.
A log does not decide whether two medications belong on the same day or in the same week. That is your prescriber's call, not something a log can answer.
A worked example week
This week is illustrative, not a real person's record. It has one weekly medication and one that repeats every three days. No amounts appear, because the log does not need them.
- Mon 8 pm: Medication: Every-three-days medication; Site: Left upper abdomen; Note: First entry of the week
- Thu 8 pm: Medication: Every-three-days medication; Site: Right upper abdomen; Note: Same time as Monday
- Sun 9 am: Medication: Weekly medication; Site: Left outer thigh; Note: Weekly day
- Sun 8 pm: Medication: Every-three-days medication; Site: Left lower abdomen; Note: Two entries today
Read it back before the next injection and the sites you used recently are on one page. The Sunday rows show what the medication column is for: two entries on one day stay distinguishable at a glance. The notes are short on purpose. A note that takes a minute to write is a note you may skip next time.
What to bring to your prescriber
Bring the log, either printed or open on your phone, with the medication names written as they appear on your labels. The log shows when and where; the questions are yours.
Some manufacturer sheets build that in. The Rebif tracker includes a section headed "Questions to discuss with your doctor". You can copy the idea without the sheet: write two or three questions at the end of your log before the appointment.
The log gives your prescriber a record to read. It does not replace their instructions, and it does not change them.
Questions people ask
What should an injection log include?
Four fields cover it: date and time, the medication name, the site, and a short note. Use the same words for each site every time, so the list reads the same from week to week.
Should an injection log have a column for the amount?
Our template leaves it out. The amount comes from your prescription label and your prescriber's instructions, and a second copy in your log is one more place for it to go wrong.
Should I keep one log or two for two medications?
We recommend one log with a medication column, sorted by date, because one list answers what you did in the last few days. Two logs work if you prefer one sheet per medication.
Does an injection log tell me what to do next?
No. A log shows what you already recorded. Which site to use and what amount to take are yours to decide with your prescriber.
Two medications, one record
Abe Burnett makes FreshSpot. Track GLP-1s, testosterone, peptides, vitamins and insulin side by side. Each one keeps its own schedule, its own dose slots and its own reminders. FreshSpot is a personal logbook. It does not provide medical advice, dosing guidance, or medication instructions. Follow your prescriber's directions.
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