Suggested answers for patients’ frequently asked questions about Toujeo®

Select a question below to see the suggested answer.

How do I dose Toujeo®?

  • Start Toujeo® at the dose prescribed by your doctor
The recommended starting dose of Toujeo® is based on prior treatment


basal insulin

unit conversion to start

Twice-daily NPH

80% of total daily NPH dose

View additional, detailed dosing information in the full Prescribing Information.
After you start Toujeo®
  • Your doctor may adjust your insulin dose
  • Be sure to take Toujeo® once a day at the same time each day
Where should I inject Toujeo®?
  • Be sure to review the full Instructions for Use for Toujeo® that comes with your prescription before injecting
  • Toujeo® is injected under your skin
  • Change (rotate) your injection sites within the area you chose with each dose. Do not use the exact spot for each injection
Injection Sites for Toujeo insulin
Injection Sites
  1. Stomach—Inject anywhere except for a 2-inch radius around navel.
  2. Thighs—Avoid injecting too close to bony area above knee.
  3. Upper arms—Inject in fatty tissue on outer back area of upper arm.
How long can I use the Toujeo® SoloStar® pen once it is opened?

Toujeo® SoloStar® can be used for up to 42 days once opened. Other important storage instructions to keep in mind:

  • Keep opened pens at room temperature, below 86ºF (30ºC) away from direct heat and light
  • Do not refrigerate an opened Toujeo® SoloStar® pen
Toujeo (insulin glargine injection) 300 Units/mL SoloStar Pen
Why might I have to increase my starting dose of Toujeo®?

Your doctor may change your Toujeo® dose several times in the first few weeks. This is to be expected. There are many reasons your doctor might increase your dose, and it’s a part of a process to help manage your blood sugar levels. If your dose increases, it doesn’t mean you’re doing anything wrong. Working together, you and your doctor will find the appropriate dose for you.


When you start on Toujeo®, it could take at least 5 days for Toujeo® to reach its full activity in patients with T1DM.

Keep track of your blood sugar levels and your insulin dose, following the schedule worked out with your doctor.

Blood Sugar Log

Download a free
Blood Sugar Log
in English or Spanish

Use the following resources when counseling your patients about Toujeo®

Select a resource below to preview or print the document.

Engaging Patients with Diabetes: A Pharmacist's Guide
Engaging Patients
With Diabetes: A
Pharmacist’s Guide

Key information about Toujeo®,
with guidance on how to inject
and on support programs.

Pharmacist Co-pay FAQs
Co-pay FAQs

A brief guide to the
Prescription Savings
Program for Toujeo®.

Toujeo Insulin Dosing Guide
Dosing Guide

Information on the
initiation and titration
of Toujeo®.