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Tris-NAC 120ml


Item no: TRISNAC
Max 1 per customer
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Tris-NAC for Ear & Skin Issues in Dogs and Cats.

Tris NAC is designed with Tris EDTA and N-acetyl cysteine for managing bacterial ear and skin issues in dogs and cats that resist usual treatments.

A rising challenge in veterinary dermatology is bacterial biofilm. Bacteria create this protective layer, making them more resistant to antibiotics.

Tris NAC assists in:

  • Breaking down this bacterial shield.
  • Reducing its formation.
  • Enhancing the effects of medicated treatments, leading to improved results in challenging cases.

Always use Tris NAC as an initial flush when biofilm is detected. Tris EDTA boosts the performance of medicated drops, while N-Acetyl Cysteine (NAC) fights bacteria and hinders biofilm formation.

Instructions for use in ears:

Apply an ear cleaner to remove any exudate present in the ear canal
Using the syringe provided, apply the correct volume by size (Small dog/cat: 1ml, Medium dog: 3ml. Large dogs: 5ml).
Massage the base of the ear and allow the product to sit in the ear canal for 5-10 minutes.
Wipe away any excess with a cotton pad.
Apply the chosen antibiotic solution.
Repeat daily for two weeks before rechecking and continue as needed.

Instructions for use on the skin:

Depending on the problem, the product be applied by either method below:
Syringe the liquid directly onto the skin as required to ensure the area affected is covered and massage in.
Apply the solution to a gauze until soaked and place the gauze onto the affected area for 10 minutes.



Can this be used for a pregnant bitch ? We can see no reason why you cannot use this in a pregnant bitch.


Shipping charges mainland GB zone1

Value Weight Delivery Charge
Over £49.00 Any Weight FREE
Under £49.00 No weight limit £4.50
Under £49.00 Under 250 grams £3.49

Most orders are despatched the same day and standard delivery is 3 to 5 working days from despatch. FAST Expedited options are available at extra cost - these usually arrive in 24-48hrs from dispatch but delays are possible during busy periods.

Postcodes outside of Zone 1 (including some areas within mainland UK) may incur extra carriage charges due to surcharges imposed by the couriers. These will be calculated on the website at the checkout. 

NB: Orders placed with faster delivery must be placed before 13:00 to ensure same day dispatch (excluding weekends and bank holidays). Please also check on the product page that the items ordered show 'In Stock' otherwise your order will be delayed until the stock becomes available, which in most cases will only be 24hrs.

Estimated "Usually shipped in" information is shown against most products

Overseas orders

We no longer send goods outside of the UK.

Prescription Items

Prescription items will be sent on receipt of a legally valid signed and dated prescription.

Pick up

We offer a pickup service for orders placed over the phone.

Please ring us on 01833 641112 for more information.

Refrigerated Items

  • Refrigerated lines Packaging Cost: Despatched with Woolcool Refrigerated Packaging for £7.50.
Wool cool keeps pharmaceutical products at fridge-like, ambient, or even freezing temperatures for up to 72 hours, and possibly longer depending on the contents and use of ice packs.
Important Delivery Information:
  • Receipt Required: Someone must be available to receive the delivery. Woolcool packaging is designed for temperature-controlled goods, so parcels cannot be left unattended.
  • Immediate Refrigeration: Upon receipt, refrigerate the contents immediately to ensure your food or medicine remains at the correct temperature.
  • Failed Delivery Attempts: We are not responsible for the cost of replacements if a delivery attempt fails due to the absence of someone to receive it.

We want you to be completely satisfied with any purchase. If not any item* can be returned to us within 14 days of receipt for exchange or refund Please give us a ring for a returns number on 01833 641112 or alternatively email sales@hyperdrug.co.uk to obtain a returns number.

*Due to legal requirements medicines may not be returned except to correct an error in despatch or in response to an "official recall". If an item is believed to be faulty it should be returned for inspection and it may be necessary to forward it to the manufacturers for testing before replacements or refunds can be authorised. This does not infringe legal rights. Please contact our customer services for a "Returns Number" which must appear on the outside of the package or it will not be accepted. We advise customers to use an insured method of shipping and to retain proof of despatch. We may refuse returns on products specially obtained or manufactured to order. Items must be returned unsoiled and unused and sent adequately packed and carriage paid.

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