Free delivery options available over £29*

Supreme Products DeFUSE Horse Calmer

Supreme Products DeFUSE Horse Calmer

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

  • 80ml Syringe £7.99
  • 500ml Bottle £22.49
  • 1 litre Bottle £36.49

Selection of 3 products from

£7.99 to £36.49


DeFUSE is a vitamin based supplement which helps calm nervous animals. No build up is normally needed and once the level for your particular horse or pony is established - and this is the principle factor and variable - you can feed DeFUSE when you feel that it is required.

Before using DeFUSE for the first time, we recommend that you establish the variables of its usage in order to achieve maximum benefit.

How to use?

It is not possible to give ‘hard and fast’ rules for its use, as every horse and pony is different in weight, height, build, metabolism rate and personality. It is, however, necessary to give guidelines for use and we hope that the following will assist you. The amount to give, as stated on the bottle, is an average amount, taken from tester’s and trialler’s reports to us over a period of time.

We suggest you try the product for the first time at home in order to establish the two main variables - how much to administer and how long it takes to work.

We recommend that you administer more than the top end of the recommended amount (which is an average amount, as previously stated) - as by doing this you will be able to see the level of calmness that the product achieves in the first instance, and be able to adjust the rate, more often than not downwards, on the next occasion until the right balance is achieved. A weightier horse or pony than the average, or a very stressed or anxious animal would require a higher or double rate of application. If you feel that you have given too much - any excess will be excreted in the urine. The guideline time for DeFUSE to take effect is approximately 21/2 hours. It has been reported to last between 6 and 12 hours. No top-up is normally necessary - but it is acceptable to do so if required.

The product contains no prohibited substances - it is a Vitamin, Amino Acid and Magnesium based supplement - all components needed by the metabolism to counteract stress and hyper-tension by working on adrenaline levels.

DeFUSE can be given in the feed, but to ascertain the amount consumed, we recommend the use of a graduated syringe or an Easy Wormer and feed straight in to the mouth.

It is necessary to keep DeFUSE at room temperature and to avoid extremes of hot or cold as this may adversely affect the product.

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.

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.

Reviews (1)

Q & A

Below are some recent questions we've received regarding Supreme Products DeFUSE Horse Calmer, including answers from our team.

18 October 2016 at 9:59am

Defuse calmer

Joanne Sampson

  • VioVet customer since 2016
  • From: Greater Manchester, United Kingdom

Hi I have a section A he's 12hh stocky would you say 1 syringe would be sufficient before a showing class

  • Veterinary Advisor

1 syringe 2-3 hrs before the class should be sufficient. However it works better on some horses and ponies than others so it is a bit trial and error to begin with- you may find he needs more or less then next time. It is difficult at a show but keeping your pony as calm and quiet as possible once he has had the calmer will allow it to work better. If he is excitable it may not work at all.