Flea treatment for a St Bernard

I used a dual-action flea and tick spot-on for a while. I paid about £14 twice in 2024, so 4 doses in total. Each box has 2 doses.

It’s a liquid solution that you apply to the base of the neck.

Those chewable tablets? No way. I’m sick of being ripped off. £36 was the last price I was quoted. ❌

🆙⚡️ Not safe if you have other elderly or sick dogs, or cats, or toddlers around ⚠️. It’ll kill a cat! A cat’s liver isn't as robust as a dog’s.

Hi there! That’s a great question, as choosing the right flea and tick protection for a large dog requires focusing on their specific needs while strictly following animal health and safety guidelines.

Here are the main things to check for when choosing and buying the ideal flea treatment for a big dog:

1. The different types of treatments available

There are several formats tailored for large dogs (usually categorised by weight ranges, for example, 44–88 lbs (3–6 stone) or over 88 lbs (6 stone 4 lbs)):

• Spot-on treatments: This is the most common format. The liquid is applied directly to the skin (usually between the shoulder blades, where the dog can’t lick it off). They generally work for 4 weeks against fleas and ticks.

• Oral tablets: These are very handy as they avoid any risk of skin contact (ideal if you have toddlers who pet the dog or if the dog swims often). Their duration of action varies from 1 to 3 months depending on the active ingredients.

• Flea and tick collars: These offer long-lasting protection (often for several months). However, you must ensure the collar is properly adjusted and suitable for the build of a large, powerful dog.

2. Essential criteria to consider

• Your dog's exact weight

• Lifestyle: Does your dog live exclusively in a house with a garden, do they go for walks in the woods, or do they swim often?

• Other pets in the home: Be careful if you have cats, for instance. Certain products for dogs (particularly those containing permethrin) are highly toxic and fatal to cats if there is direct contact.

3. Where to buy and regulatory precautions

• Stick to the vet or a pharmacy: You will get personalised advice and products that have been rigorously tested for safety and efficacy.

Don’t hesitate to ask your vet for advice during your next visit; they will be able to recommend the most suitable product for your big companion’s lifestyle and health.

Best regards,

Léo Mettas

This is not a substitute for medical advice – please consult a vet if needed

Hi there

I’m looking for some advice on buying flea treatments for large dogs