Skip to main content
  • Important Safety Info
  • Prescribing Info
  • Patient Info
  • Instructions for Use
  • For Healthcare Professionals
  • Severe Hypertriglyceridemia
  • Familial Chylomicronemia Syndrome

Mobile top menu

  • Important info
    • Important Safety Info
    • Prescribing Info
    • Patient Info
    • Instructions for Use
    • For Healthcare Professionals
    • Severe Hypertriglyceridemia
TRYNGOLZA (olezarsen) Injection Logo

Main navigation

  • Home
  • About FCS
  • About TRYNGOLZA
    • How TRYNGOLZA works
    • Clinical trial
  • Safety and side effects
  • Taking TRYNGOLZA
  • Access and support
    • Ionis Every Step™ support
    • Find a lipid specialist
    • TRYNGOLZA webinars
  • Resources
    • TRYNGOLZA stories
    • Resource library
    • Useful links
  • Get updates

Get updates

Your FCS has run wild for too long—Tame it with Tryngolza

TRYNGOLZA is the first FDA‑approved prescription medicine for adults with FCS

TRYNGOLZA is a prescription medicine used along with diet to lower triglycerides, which may help you take control of your FCS.

Actor portrayal.
FCS=familial chylomicronemia syndrome.

Reduction of ApoC-III Protein Levels Icon

How TRYNGOLZA works

TRYNGOLZA targets a protein in the liver called apolipoprotein C-III

Triglyceride Lowering Arrow Icon

Triglyceride lowering

TRYNGOLZA significantly lowered triglycerides in participants with FCS in a clinical trial at 6 months

Treatment Journey Support Icon

Treatment journey support

The Ionis Every StepTM program is here for you, every step of the way

TRYNGOLZA Injection Icon

Taking TRYNGOLZA

TRYNGOLZA is a once-monthly, convenient single-dose autoinjector

Safety and Side Effects Icon

Safety and side effects

TRYNGOLZA was generally well tolerated

Access TRYNGOLZA Icon

Accessing TRYNGOLZA

Helping you access your medication is important to us

Film Icon

TRYNGOLZA stories

Hear adults living with FCS share their experiences with TRYNGOLZA

Important safety information & Indications

Important safety information

Do not use TRYNGOLZA® (olezarsen) if you have had a serious allergic reaction to TRYNGOLZA or any of the ingredients in TRYNGOLZA.

Before using TRYNGOLZA, tell your healthcare provider about all of your medical conditions, including if you: are pregnant or plan to become pregnant, or are breastfeeding or plan to breastfeed. It is not known if TRYNGOLZA can harm your unborn baby, or if it passes into your breast milk and if it can harm your baby.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the possible side effects of TRYNGOLZA?
TRYNGOLZA can cause side effects including allergic reactions that may be serious. Allergic reactions can include redness of the skin, red itchy bumps (hives), swelling of the face, chills or trouble breathing. Stop taking TRYNGOLZA and call your healthcare provider or get emergency help right away if you have any of these symptoms.

TRYNGOLZA can cause increases in liver enzymes and fat stored inside the liver. Your healthcare provider may do liver tests before you start taking TRYNGOLZA or if there is an increase in your dose. Tell your healthcare provider right away if you have the following symptoms: feeling tired or weak, right upper stomach discomfort, yellowing of the skin and eyes, loss of appetite, or dark colored urine.

The most common side effects of TRYNGOLZA in people with FCS include injection site reactions (such as redness, itching, rash, or pain at the injection site), decreased platelet count (blood cells that help to clot blood), and joint pain or stiffness.

The most common side effects of TRYNGOLZA in people with sHTG include injection site reactions (such as redness, itching, rash, or pain at the injection site) and increased liver enzymes.

These are not all the possible side effects of TRYNGOLZA. Tell your healthcare provider or treatment team about any side effect you may have.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/safety/medwatch, or call 1-800-FDA-1088.

Indications

TRYNGOLZA is a prescription medicine used along with diet to:

  • Reduce triglycerides (fat in the blood) in the treatment of adults with a condition that keeps the body from breaking down fats called familial chylomicronemia syndrome (FCS).
  • Reduce triglycerides and reduce the risk of acute inflammation of your pancreas (pancreatitis) in the treatment of adults with a condition marked by very high levels of triglycerides in the blood called severe hypertriglyceridemia (sHTG).

It is not known if TRYNGOLZA is safe and effective in children.

Please see full Prescribing Information and Patient Information for TRYNGOLZA.

Important safety information

Do not use TRYNGOLZA® (olezarsen) if you have had a serious allergic reaction to TRYNGOLZA or any of the ingredients in TRYNGOLZA.

Before using TRYNGOLZA, tell your healthcare provider about all of your medical conditions, including if you: are pregnant or plan to become pregnant, or are breastfeeding or plan to breastfeed. It is not known if TRYNGOLZA can harm your unborn baby, or if it passes into your breast milk and if it can harm your baby.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the possible side effects of TRYNGOLZA?
TRYNGOLZA can cause side effects including allergic reactions that may be serious. Allergic reactions can include redness of the skin, red itchy bumps (hives), swelling of the face, chills or trouble breathing. Stop taking TRYNGOLZA and call your healthcare provider or get emergency help right away if you have any of these symptoms.

TRYNGOLZA can cause increases in liver enzymes and fat stored inside the liver. Your healthcare provider may do liver tests before you start taking TRYNGOLZA or if there is an increase in your dose. Tell your healthcare provider right away if you have the following symptoms: feeling tired or weak, right upper stomach discomfort, yellowing of the skin and eyes, loss of appetite, or dark colored urine.

The most common side effects of TRYNGOLZA in people with FCS include injection site reactions (such as redness, itching, rash, or pain at the injection site), decreased platelet count (blood cells that help to clot blood), and joint pain or stiffness.

The most common side effects of TRYNGOLZA in people with sHTG include injection site reactions (such as redness, itching, rash, or pain at the injection site) and increased liver enzymes.

These are not all the possible side effects of TRYNGOLZA. Tell your healthcare provider or treatment team about any side effect you may have.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/safety/medwatch, or call 1-800-FDA-1088.

Indications

TRYNGOLZA is a prescription medicine used along with diet to:

  • Reduce triglycerides (fat in the blood) in the treatment of adults with a condition that keeps the body from breaking down fats called familial chylomicronemia syndrome (FCS).
  • Reduce triglycerides and reduce the risk of acute inflammation of your pancreas (pancreatitis) in the treatment of adults with a condition marked by very high levels of triglycerides in the blood called severe hypertriglyceridemia (sHTG).

It is not known if TRYNGOLZA is safe and effective in children.

Please see full Prescribing Information and Patient Information for TRYNGOLZA.

Footer menu

  • Terms of Use
  • Privacy Policy
  • Consumer Health Data Privacy Policy
  • Toggle Icon Your Privacy Choices
  • Contact Us
  • Report Side Effects
  • Site Map
Ionis Logo

©2024-2026 Ionis Pharmaceuticals, Inc. IONIS, the IONIS logo, TRYNGOLZA, the TRYNGOLZA logo, and the TRYNGOLZA symbol are registered trademarks and IONIS EVERY STEP is a trademark of Ionis Pharmaceuticals, Inc. All other trademarks are the property of their respective owners. All rights reserved. US-OLZ-2600049 v1.0 06/2026

For US residents only.

Social menu

  • Facebook
  • Instagram
  • Reddit

You are about to leave 
TRYNGOLZA.com

You will be taken to a third-party site. Ionis is not responsible for the content.

Thank you for visiting TRYNGOLZA.com

Proceed Cancel

You are about to leave 
TRYNGOLZA.com

You will be taken to the Ionis corporate site.

Choose "Proceed" to confirm.

Proceed Cancel

You are about to leave 
TRYNGOLZA.com

You will be taken to the TRYNGOLZA® healthcare professional site. 

Choose "Proceed" to confirm you are a healthcare professional.

Proceed Cancel