How to keep a semaglutide injection log

Start with the official instructions

Semaglutide products and indications can differ. The current MedlinePlus drug information says semaglutide injection should be used exactly as directed and that patients should read the Medication Guide and ask a doctor or pharmacist questions about the injection. Use the instructions supplied with your own prescription as the source of truth.

This guide is about documentation. It does not tell you which product to use, how much to inject, when to increase a dose, or how to handle a missed dose. If you are unsure about any of those questions, contact your prescriber or pharmacist before acting.

A simple injection-log checklist

After following your prescribed instructions, a record can include:

• Product name: record the name shown on the label so different medicines or formulations are not confused.
• Prescribed dose detail: copy the information from the label or care plan rather than relying on memory. Never use the app to infer a dose.
• Date and time: note when the dose was administered, including the time zone or local context if you travel.
• Injection site: record the body area used when that is part of your instructions. MedlinePlus advises using a different site for each injection; follow the exact instructions for your product.
• Pen or supply note: record only what helps you communicate a question, such as a damaged pen, an unclear label, or a supply concern. Ask a pharmacist about storage, disposal, and device questions.
• After-dose observations: note symptoms, timing, duration, and anything that made the day unusual.

What if you missed, delayed, or are unsure about a dose?

Do not use a tracker’s estimate to decide whether to take an extra dose, combine doses, or change your schedule. The correct action can depend on the product, the reason it was prescribed, and how much time has passed. Read the medication-specific instructions and contact your prescriber or pharmacist when the answer is unclear.

In your log, write “question for clinician” rather than guessing. That small distinction prevents a personal note from being mistaken for medical direction.

Why injection-site notes can be useful

A site note is a memory aid. It can help you notice whether you repeatedly use the same area or whether a local reaction followed a particular injection. It does not prove why a reaction happened and cannot confirm that a site is safe for the next injection. Follow your product instructions and ask a healthcare professional about persistent redness, swelling, pain, or other concerns.

Keep the record factual

Try to separate what you observed from what you think it means. “Nausea began in the evening and lasted three hours” is more useful at an appointment than “the medicine caused a serious problem.” The same applies to weight, appetite, and food notes. Consistent observations can support a conversation; they do not establish a diagnosis or treatment response by themselves.