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Milbemaxᵀᴹ Tablets for Large Dogs 125mg (5kg-25kg)

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  • £4.08 £8.88 Save £4.80 Single tablet
  • £198.00 £444.00 Save £246.00 50 tablets
SRP £8.88
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For the treatment of infections from roundworms, hookworms, whipworms, tapeworms, lungworms and the prevention of heartworm disease.
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Product Details

This is a prescription item and will be sent once a valid prescription has been received and approved by our vet.

What are Milbemax Worming Tablets? 

Milbemax for dogs is a prescription grade medication meant for the treatment and prevention of common intestinal worms in dogs, including: 

  • Roundworm
  • Hookworm
  • Whipworm
  • Tapeworm
  • Heartworm infections (For prevention only. Please consult your vet before use if your dog has travelled to a heartworm endemic area). 

As a prescription medication, we are only able to dispense the amount of tablet stated on your prescription. To prevent delays in your order, make sure you select the correct amount of tablets for your order. 

Milbemax worming tablets are prescribed depending on your pet’s body weight. Please ensure you are ordering the correct dosage for your pet. We also offer the following Milbemax worming tablets: 

  • Milbemax Small Dog & Puppy Wormer Tablets 2.5mg/25mg
  • Milbemax Chewy Tabs For Dogs 12.5/125mg
  • Milbemax Chewy Tabs For Dogs 2.5mg/25mg (Small Dog And Puppies)

Milbemax Large Dog Wormer is a prescription medication and will only be sent once a valid prescription is received. If you would like advice on how to send your pet’s prescription to us, please read our prescriptions information page

How Does Milbemax Work? 

The key ingredients in Milbemax worming tablets for dogs are Milbemycin Oxime and Praziquantel. Both of these ingredients work by disrupting the nervous system of the worms, resulting in their paralysis and death.


It is available in
  • Single tablet or pack of 50 tablets


  • Active Ingredients
    Milbemycin Oxime, Praziquantel

How to Store Milbemax Dog Tablets 

All Milbemax dog worming tablets come prepared in blister pack packaging and should not be opened until you are ready to administer them to your dog. While in the blister pack packaging, Milbemax tablets should not be stored above 25 °C and have a shelf life of 2 years. Keep the blister packaging in the outer carton in order to protect it from light. 

Any unused Milbemax tablets should be appropriately disposed of either through your vet or at a suitable Disposal Of Old Pharmaceuticals (DOOP) Bin. 

Administration Instructions:

Important Safety Information 

  • Milbemax Worming Tablets should not be used in: 
  • Dogs weighing less than 5 kg.
  • Cases of hypersensitivity to the active substances or to any of excipients.
  • Do not use Milbemax Dog wormers in cats. Instead, use the Milbemax Tasty Cat Wormer. 
  • Milbemax is not recommended for use in severely debilitated dogs or individuals with seriously compromised kidney or liver function. 

Adverse Reactions 

On very rare occasions the following reactions can occur in dogs after Milbemax administration.

  • Hypersensitivity reactions
  • Lethargy
  • Neurological signs (muscle tremors and unsteadiness)
  • Gastrointestinal signs 

Please consult your vet immediately if your dog shows any adverse reactions following milbemax administration. 

How to Administer Milbemax Worming Tablets for Large Dogs 

If you are treating more than one pet in your household, it is recommended you treat them all at the same time. The number of tablets you should give your dog will be stated on your prescription as advised by your vet based on your dog’s body weight. Do not give any more or fewer tablets to your pet unless advised otherwise by a veterinary professional. 

Milbemax worming tablets should be administered orally to your dog with, or just after food. 

Always wash your hands after administering Milbemax tablets. 

If your dog struggles to take tablets, why not speak to your vet about the Milbemax chewable tablets? 


Q - Does Milbemax cover lungworm?

A - Yes! Milbemax worming tablets can be used to treat and prevent lungworm infections however please consult your vet regarding using Milbemax for this purpose as an altered dosing regime may be indicated. 

Q - How often should I worm my dog with Milbemax?

A - Milbemax worming tablets can be given routinely to your adult dog once every three months. For younger dogs, or dogs who are pregnant or lactating, as well as those with a specific infection, speak with your vet on the appropriate dosage amounts and frequency for Milbemax administration. 

Q - Can I buy Milbemax over the counter?

A - No. Milbemax is a prescription-only medication intended for the treatment and prevention of intestinal worms in dogs. Please be wary of anyone offering to sell Milbemax or any other prescription grade medications without a valid prescription and they may not be a properly accredited retailer. 

Ordering prescription medication is easy

Follow these simple steps

  1. Get a prescription from your vet
  2. Place your order with us
  3. Add a prescription and tell us about your pet
  4. Our vets will double-check your order & once approved, your order will be dispatched within 2 working days.
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