The Happy
Knees Program
The Happy
Knees Program

If you are receiving EUFLEXXA or are considering starting EUFLEXXA soon, the HAppy Knees Program was made for you. Get informative lifestyle tips and information about EUFLEXXA via email and helpful appointment reminders via text. Sign up and we’ll communicate with you by email, text, or both. It’s your choice!

If you’re taking EUFLEXXA or starting EUFLEXXA soon

We’ll text you reminders to ensure that you don’t forget a single appointment. You’ll also get useful lifestyle tips for keeping your knees healthy. Combined with the EUFLEXXA TRIFECTA of injections, there’s no better way to get moving again.

When your HCP prescribes EUFLEXXA for you, sign up by giving us your phone number below and clicking submit.

Please See Important Safety Information and Full Prescribing Information.


EUFLEXXA (1% sodium hyaluronate) is used to relieve knee pain due to osteoarthritis. It is used for patients who do not get enough relief from simple pain medications such as acetaminophen or from exercise and physical therapy.

EUFLEXXA is only for injection into the knee, performed by a doctor or other qualified healthcare professional.


  • Do not take this product if you have had any previous allergic reaction to EUFLEXXA or hyaluronan products.
  • You should not have EUFLEXXA injected into the knee if you have a knee joint infection or skin diseases or infections around the injection site.
  • EUFLEXXA has not been tested in pregnant women, women who are nursing or in children less than 18 years of age. After you receive your EUFLEXXA injection you should avoid physical activities for 48 hours such as jogging, tennis, heavy lifting, or standing on your feet for a long time (more than one hour at a time).
  • The most common adverse events related to EUFLEXXA injections were joint pain, back pain, limb pain, muscle pain, and joint swelling.

You are encouraged to report negative side effects of prescription drugs to the FDA.
Visit or call 1-800-FDA-1088.
You may also contact Ferring Pharmaceuticals Inc. at 1-888-FERRING.