POM-V Prescription Required

HY-50 Vet 17 mg/ml Solution for Injection in Pre-filled Syringe

Active ingredient: Sodium Hyaluronate

Form

Injection

Species

Horses

Manufacturer

Dechra Regulatory B.V.

VMD MA No.

50406/5037

What it's used for

For adjunctive intra-articular treatment of joint disease associated with non-infectious synovitis in horses.

Full indications, dosage and side effects ↓

View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Sodium Hyaluronate

1

Ask your vet for a written prescription

They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
2

Fill it at a registered online retailer

The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Your prescription rights → VMD register of retailers →

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

HY-50 Vet 17 mg/ml Solution for Injection in Pre-filled Syringe — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

For adjunctive intra-articular treatment of joint disease associated with non-infectious
synovitis in horses.

Intravenous use: 3 ml intravenously repeated at weekly intervals for a total of
three treatments.
AN: 01937/2025 & 01938/2025
For single intraarticular injection: 3 ml (51 mg) intraarticularly into medium sized
and large joints. Smaller joints such as intertarsal, tarsometatarsal and
interphalangeal joints can be treated with a 1.5 ml dose (25.5 mg).
More than one joint may be treated at the same time.
Excess synovial fluid should be removed whenever possible prior to injection.
Remove the veterinary medicinal product from refrigerator approximately 10
minutes before performing injection. The injection should be administered under
strict aseptic conditions. Ensure removal of dirt, hair, topical medicaments and
soap/antiseptic residues. Intraarticular injections should not be made through
overlying skin that is infected, blistered, scurfed or otherwise compromised. A
sterile dressing and clean bandage should be applied after injection, as
appropriate for the particular joint treated.

Do not use in cases of joint infection.

Horse:
Common
(1 to 10 animals / 100 animals
treated):
Injection site joint reaction (injection site
swelling, injection site warmth)
a
a
Transient and mild. Self-limiting swelling and/or heat in the treated joint
resolve spontaneously within 48 hours, and do not negate a successful
therapeutic outcome.
Reporting adverse events is important. It allows continuous safety monitoring of
a veterinary medicinal product. Reports should be sent, preferably via a
veterinarian, to either the marketing authorisation holder or its local
representative or the national competent authority via the national reporting
system. See the package leaflet for respective contact details.

None.
AN: 01937/2025 & 01938/2025

Special precautions for safe use in the target species:
Radiographic evaluation should be carried out in cases of acute, severe
lameness to ensure that the joints are free from serious fractures.
Special precautions to be taken by the person administering the veterinary
medicinal product to animals
Not applicable.
Special precautions for the protection of the environment:
Not applicable.

interaction
No data available.

Store in a refrigerator (2 C – 8 C). Do not freeze.

More than one joint may be treated at the same time.
Excess synovial fluid should be removed whenever possible prior to injection.
Remove the veterinary medicinal product from refrigerator approximately 10
minutes before performing injection. The injection should be administered under
strict aseptic conditions. Ensure removal of dirt, hair, topical medicaments and
soap/antiseptic residues. Intraarticular injections should not be made through
overlying skin that is infected, blistered, scurfed or otherwise compromised. A
sterile dressing and clean bandage should be applied after injection, as
appropriate for the particular joint treated.
3.10 Symptoms of overdose (and where applicable, emergency
procedures and antidotes)
Not reported.
3.11 Special restrictions for use and special conditions for use, including
restrictions on the use of antimicrobial and antiparasitic veterinary
medicinal products in order to limit the risk of development of
resistance
Not applicable.
3.12 Withdrawal periods
Meat and offal: zero days.
4.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.