UK Registered Veterinary Retailer

Health & Herbal Tranquil E Horse Calming Supplement

Health & Herbal Tranquil E Horse Calming Supplement

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

  • 1 litre Bottle £15.99
  • 2.5 litre Bottle £32.99

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£15.99 to £32.99


An aqueous Valerian infusion, Tranquil E can be used to naturally treat anxiety problems, quickly calming a horse for long-lasting relaxation. Whilst it can be administered whenever, it is particularly effective immediately prior to stressful or demanding activities (training/transport). For horses and ponies with a specific sensitivity to loud noises, severe weather or sudden movement, Tranquil can be used a supplement on a regular basis.

Feeding guidelines


  • Up to 14.2hh - Up to 20ml per day
  • Over 14.2hh - Up to 40ml per day

Feed for 3 weeks then take a break for 1 week before continuing use.

Dogs & cats

  • Small dogs & cats - 5ml per day
  • Medium dogs - 10ml per day
  • Large dogs - 15ml per day
  • Working dogs - 1ml/kg per day (Maximum of 20ml)


Extract of Valerian Root, Propionic Acid and Acetic Acid as preservative.

The concentration of Valerian Root is equivalent to 250-300mg per 10ml.

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 (16)

Q & A

Below are some recent questions we've received regarding Health & Herbal Tranquil E Horse Calming Supplement, including answers from our team.

4 February 2019 at 6:48pm

Instant calming

Jackie Meadows

  • VioVet customer since 2019
  • From: Essex, United Kingdom

Can it be used as an instant calmer? If so, how long before the activity, should it be given? How long do the effects last?

  • Veterinary Advisor

Yes, Valerian can be used immediately before stressful or demanding activities. You should give it 30 minutes-2 hours before the event. The effects can last up to 24 hours but this is dependant on the individual horse.

22 July 2016 at 8:13am

Withdrawal period

Lorraine Hanna

  • VioVet customer since 2015
  • From: North Yorkshire, United Kingdom

Hi Valerian products were recently added to the "banned" list for horses competing under rules. What would be an approximate "withdrawal period " please?

  • Veterinary Advisor

I am unable to find the up to date list of FEI detection times but studies show that Valerian is absorbed and eliminated rapidly. A withholding period of 24 h should be adequate for this product although withholding for 2-3 days before competition is a good idea to err on the side of caution.

14 June 2016 at 1:51pm



  • VioVet customer since 2015
  • From: North Yorkshire, United Kingdom

Once the 5 litre bottle has been opened how long does the effectiveness last?

  • Non-Executive Director

This product uses natural preservatives a bit like vinegar. It should remain fully effective for several months, but would degrade in time. This will be a gradual process depending on things like, temperatures, humidity, degree and type of contamination (inevitable to some extent whenever any liquid is taken from the container). I would aim to use it all up within 3 months, but it should last considerably more time than that if you can keep it clean and in a cool, dry place (out of the sun).