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Frontline Tri-Act Flea & Tick Treatment For Dogs


  • Select Option
  • Large 20-40kg (pack of 3)
  • Medium 10-20kg (pack of 3)
  • Small 5-10kg (pack of 3)
  • Extra Large 40-60kg (pack of 3)
  • Extra Small 2-5kg (pack of 3)
Max 1 per customer
£25.19 - £35.15
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Give your dog a new level of parasite protection. New  FRONTLINE  Tri-act  FOR  DOGS  has  a  unique  formula  that  kills  faster  and  repels  more disease-carrying parasites than the next leading competitor brand. 

Used every 4 weeks, it is the  next  level  in  parasite  control  for  dogs,  providing  long-lasting  protection  against  flying insects as well as fleas and ticks whilst also preventing home flea infestations.

FRONTLINE Tri-act® FOR DOGS helps to keep your dog active, healthy and happy by working against a range of common UK parasites that can transmit diseases or cause irritation to your dog. 

Use every 4 weeks for optimal protection. 

•Starts killing fleas in just 5 minutes1
•Kills newly arriving fleas and ticks on your dog within 6 hours and keeps working for the whole duration of treatment
•Kills mosquitoes, biting flies and sandflies

•Repels ticks for 4 weeks
•Helps reduces the risk of tick-borne diseases
•Repels flying insects for up to 5 weeks to prevent them from biting

•Prevents  a  flea  infestation  in  your  home  when  used  every  4  weeks  by  killing  fleas before they can lay eggs.

Clinically proven and formulated specifically for dogs, FRONTLINE Tri-act® FOR DOGS is also water-resistant after 48 hours –so your dog can enjoy occasional swimming and bathing and still stay protected.

In the absence of specific studies, the use of the product is not recommended in dogs younger than 8 weeks of age, or in dogs weighing less than 2 kg.
Care should be taken to avoid contact of the veterinary medicinal product with the dog's eyes.
It is important to make sure that the product is applied to an area where the animal cannot lick it off and to make sure that other animals do not lick the treatment sites following application.

Is this safe for a puppy who weighs 11.2kg? Is it simply weight based? Yes, you will need the 10-20kg size.


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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