SKYTROFA® Auto-Injector—award-winning innovation in your hands

Girl smiling while holding SKYTROFA auto-injector.

Unplug. Inject. Go.

The innovative SKYTROFA Auto-Injector provides clear direction at every step of the process with precise mixing and automated injection.

Needle guard
Starts injection when pressed against skin
Inspection window
Allows for inspection of mixed medicine
Progress bar
Shows progress of mixing and injection
Check mark
Indicates injection is successfully completed
Indicates mixed medicine is ready for inspection in window
Indicates medicine mixing is in progress
To turn on Auto-Injector or reject mixed medicine
Contains medicine and water for injection
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Innovative features

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No refrigeration, no preservatives

SKYTROFA cartridges do not need to be refrigerated for up to 6 months.* SKYTROFA is preservative free. Each single-dose cartridge contains only lonapegsomatropin-tcgd, diluent, and sterile water.

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No need to dial the dose

SKYTROFA comes in ready-to-use, color-coded cartridges for the prescribed dose. During administration, the Auto-Injector delivers the entire dose without wasting medicine

  • All cartridges work in the SKYTROFA Auto-Injector
  • SKYTROFA has a range of dosage strengths. Your doctor can easily adjust your child’s prescribed dose as they grow
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Small needle size selected with your child’s comfort in mind

Uses a thin, 31-gauge needle provided to patients with every SKYTROFA cartridge delivery

  • The SKYTROFA Auto-Injector has a needle guard that conceals the needle during injections
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Unplug, inject, and go

The Auto-Injector is reusable and rechargeable. It reduces the waste of disposable injector pens and batteries. A full charge lasts for 4 weeks, with 1 injection per week

  • The Auto-Injector is designed to last up to 4 years or 210 injections, whichever comes first

* Store SKYTROFA in the original package to protect from light. Do not freeze. SKYTROFA can be stored at room temperature (not to exceed 86°F [30°C]) for up to 6 months. Alternatively, SKYTROFA can be stored under refrigeration at 36°F to 46°F (2°C to 8°C) until the expiration date. If refrigerated, keep at room temperature for 15 minutes before use. Do not use SKYTROFA beyond the expiration date or 6 months after the date it was first removed from refrigeration (whichever is earlier).

Awards Ribbons

Triple-award-winning Auto-Injector device recognized for its innovative, patient-centric product design

Pharmapack logo


Selected for its patient-centric design in the Health Product category

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Recognized for technical innovation in advancing the field of bio/pharmaceutical manufacturing

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Industrial Design

Awarded for outstanding, high‑quality product design

Watch: How to use the SKYTROFA Auto-Injector

See the simple steps to growth with the SKYTROFA Auto-Injector. For detailed instructions, download and read the Instructions for Use.

Patients who require 2 cartridges per week will need to repeat the steps shown.
It is important to be trained by an HCP on how to use your Auto-Injector prior to first use.


Leverage tools that you already have available to help remind you about your weekly injections

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Create a weekly calendar reminder

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Set an alarm on your smartphone⁠—⁠you can even choose a unique ringtone

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Use voice commands with your smart home devices

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Explore medication reminder apps

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You can get injection reminders from the A·S·A·P Messaging Service. Sign up for your weekly text reminder now.

Sign up

Speak with your doctor about choosing SKYTROFA

Let your doctor know you are interested in once-weekly SKYTROFA today.

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