Free delivery options available over £29*

Hy-50 (Hy 50) Vet 17mg/ml

Hy-50 (Hy 50) Vet 17mg/ml
3ml dose

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • 3ml dose £115.49


Hy-50 Vet is an injection for use in horses. It is used to treat joint problems where there is no infection involved and can be injected directly into the joint, or into the blood stream.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Medication Datasheets

3ml dose

HY-50® Vet. 17 mg/ml Solution for Injection

Qualitative and quantitative composition

Active substance:

Sodium hyaluronate 17 mg/ml

Pharmaceutical form

Solution for injection. Clear, colourless, viscous solution.

Clinical particulars

Target species


Indications for use

For intra-articular and intravenous treatment of lameness caused by joint dysfunction associated with non-infectious synovitis.


Do not use in cases of joint infection.

Special precautions for use in animals

Radiographic evaluation should be carried out in cases of acute, severe lameness to ensure that the joints are free from serious fractures.

Adverse reactions

Transient mild swelling and/or heat has been reported in treated joints (2.7%). These self-limiting local signs resolve spontaneously within 48 hours and do not negate a successful therapeutic outcome.

Use during pregnancy and lactation

Safety in pregnant and lactating mares has not been documented. Use only according to the benefit/risk assessment by the responsible veterinarian.

Amounts to be administered and administration route

Intravenous use: 3 ml intravenously repeated at weekly intervals for a total of three treatments.

For single intra-articular injection: 3 ml (51 mg) intra-articularly 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 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. Intra-articular 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.

Single dose syringes made ready for injection shall be used immediately. Any unused portion of a syringe is to be discarded.

Withdrawal periods

Meat and offal: zero days.

Pharmacological particulars

Pharmacotherapeutic group: Sodium hyaluronate (hyaluronic acid)

ATCvet code: QM09AX01

Pharmacodynamic properties

The active substance in HY-50 Vet, sodium hyaluronate, is produced by a bacterial fermentation process. Sodium hyaluronate is the sodium salt of hyaluronic acid, a non-sulphated acid mucopolysaccharide or glycosaminoglycan of high molecular weight composed of equimolar amounts of D-glucuronic acid and N-acetylglocosamine linked together by glycosidic bonds.

Hyaluronic acid is a natural constituent of connective tissues in all mammals and its chemical structure is the same in all species. Vitreous humour, umbilical cord and synovial fluid are especially rich in hyaluronic acid. Hyaluronic acid is also found in the articular cartilage matrix.

Hyaluronic acid has biochemical activities which are distinct from its physical and rheological properties. It is an effective free radical scavenger, a potent inhibitor of leucocyte and macrophage migration and aggregation, and enhances healing of connective tissue.

Intra-articularly administered sodium hyaluronate alleviates aseptic joint inflammation and enhances joint function. The mechanism of action involved in the beneficial effects of sodium hyaluronate is not fully understood.

Pharmacokinetic properties

Studies with radiolabelled hyaluronic acid in rabbit and sheep indicate that after intra-articular injection, hyaluronic acid is cleared from the joint within 4 to 5 days. Uptake is primarily via the lymphatics. Hyaluronate is metabolised in the liver.

Pharmacokinetic properties of intravenously administered sodium hyaluronate have not been studied.

Pharmaceutical particulars


Do not mix with any other product.

Shelf life

Shelf life of the veterinary medicinal product as packaged for sale: 3 years

Single-dose syringes made ready for injection shall be used immediately. Any unused portion of a syringe is to be discarded.

Special precautions for storage

Store in a refrigerator (2°C-8°C). Do not freeze.

Immediate packaging

Pre-loaded 3 ml single-dose glass syringes. Each syringe is packaged in an individual heat-sealed tray and carton. Available in single cartons or boxes containing 12 cartons. Not all pack sizes may be marketed.


Any unused product or waste material should be disposed of in accordance with national requirements.

Marketing Authorisation Holder (if different from distributor)

Dechra Limited, Snaygill Industrial Estate, Keighley Road, Skipton, North Yorkshire, BD23 2RW, United Kingdom.

Marketing Authorisation Number

Vm 10434/4078

Date of the first authorisation or date of renewal

12 June 1998

Date of revision of the text

March 2016

Any other information

For animal treatment only. To be supplied only on veterinary prescription. Keep out of the sight and reach of children.

Legal category

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products, such as Insulin, are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as insulin and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.


Q & A

There are currently no questions for Hy-50 (Hy 50) Vet 17mg/ml - be the first to ask one!