Skip to content
injectcompass
TechniqueClinical

What to ask before your first injection

Six questions for the pharmacy counter or the clinic that head off most first-week injection problems, and who is best placed to answer each.

SL
Sara Lin
RN, BSN · Author
Medically reviewed by Dr. Maya Okafor
Last updated September 1, 2026
What to ask before your first injection

Six questions for the pharmacy counter or the clinic that head off most first-week injection problems, and who is best placed to answer each.

Key points

  • 01Which device am I actually getting, and can you show it to me?. A single-dose autoinjector, a multi-dose dial pen and a vial with a syringe are three different procedures, and half the confusing advice online is aimed at a device other than yours. Ask to see the one in the box before you leave, because every later question depends on the answer.
  • 02Which sites, and how should I move between them?. Ask which zones apply to your medication, how far apart consecutive punctures should be, and how often to change zone. You want a rotation you can describe in one sentence, and a simple answer here is what our rotation guide then helps you keep to over months.
  • 03Do needles come with it, and which size?. Some pens are dispensed with needles, some are not, and needles are a separate prescription item in many places. Ask what the box contains, what gauge and length you will get and whether that choice suits you, so you are not discovering the gap the night before dose one.
  • 04Where does it live between doses?. Ask for the fridge range, how many days it may spend at room temperature once in use, and the exact reasons to discard it. Write the three numbers on the carton. This single question prevents the most common avoidable loss of an expensive medication.
  • 05What is normal at the site in the first week, and what is not?. Ask what a normal reaction looks like, how long a small lump or a pink patch may last, and which specific changes justify a phone call. A named threshold in advance is what stops an ordinary reaction becoming a 2am search.
  • 06What if I miss a dose or the device fails, and who do I call?. Ask for the missed-dose rule in the leaflet for your medication, what to do if a pen fails mid-injection, and which number to call for a clinical question versus a device complaint. Save the numbers in your phone the same day.

Frequently asked questions

Should I ask my prescriber or the pharmacist?+

Both, on different questions. Dose, missed doses and side effects are prescriber territory; device handling, storage, needles and supply questions are exactly what a pharmacist does daily. Educational information only, not medical advice.

Can I ask someone to watch my first injection?+

Yes, and it is a reasonable request. Many pharmacies and clinics will run through the device with you, and a nurse educator watching once is the fastest way to fix a technique habit before it sets.

What should I write down?+

The storage range and the in-use day count, the needle size, the rotation rule, the missed-dose rule and two phone numbers. Keep it with the carton rather than on a loose note.

What if I still do not feel ready?+

Say so plainly to your prescriber. Practical support ranges from a repeat demonstration to a different device to a caregiver giving the first doses, and none of that is unusual.

Sources

  1. American Diabetes Association. Insulin routines and injection technique.
  2. MedlinePlus. Giving a subcutaneous injection (patient instructions).
  3. Frid AH et al. 2016. New Insulin Delivery Recommendations. Mayo Clinic Proceedings 91(9):1231-1255.