Skip to content
Head-to-Head
Cat
Flea & Tick

Broadline for Cats vs Stronghold Plus for Cats

A detailed comparison of Broadline for Cats and Stronghold Plus for Cats for cats. Which is the better choice? We compare ingredients, dosing, price, and side effects.

Broadline for Cats

All-in-one monthly spot-on covering fleas, ticks, roundworm, hookworm, and tapeworm. The most comprehensive cat parasite product.

Ingredient Fipronil + (S)-Methoprene + Eprinomectin + Praziquantel
Form Spot-on pipette
Frequency Monthly
Price range £8–£15/month

Stronghold Plus for Cats

Monthly spot-on covering fleas, ticks, ear mites, roundworm, and hookworm. Does not cover tapeworm.

Ingredient Selamectin + Sarolaner
Form Spot-on pipette
Frequency Monthly
Price range £8–£14/month
Buy with a vet prescription

Save on Broadline for Cats or Stronghold Plus for Cats at a UK pharmacy

UK registered pharmacies dispense the same prescription medications as your vet, often for less. Ask your vet for a written prescription, then fill it online.

Affiliate links to The Pharm Pet Co., a UK registered veterinary pharmacy. We may earn a small commission, at no extra cost to you. Always follow your vet's guidance on medication choice and dosing.

Side-by-Side Comparison

Feature Broadline for Cats Stronghold Plus for Cats
Active Ingredient Fipronil + (S)-Methoprene + Eprinomectin + Praziquantel Selamectin + Sarolaner
Form Spot-on pipette Spot-on pipette
Frequency Monthly Monthly
Species Cats Cats
Price Range £8–£15/month £8–£14/month

Key Differences

Tapeworm

Broadline covers tapeworm (praziquantel); Stronghold Plus does not.

Flea ingredient

Stronghold Plus uses sarolaner (newer, no resistance); Broadline uses fipronil (older, some resistance).

Ear mites

Stronghold Plus is particularly effective against ear mites.

Completeness

Broadline is the closest to a "one product does everything" for cats.

Best choice

Broadline if tapeworm is a concern (hunting cats); Stronghold Plus for better flea efficacy.

Pros & Cons

Broadline for Cats

Pros

  • Covers tapeworm — unique among spot-ons
  • Broadest parasite coverage available for cats
  • One product replaces flea, tick, and wormer
  • Also kills roundworm and hookworm

Cons

  • Prescription only
  • Contains fipronil (resistance concerns)
  • More expensive than basic flea treatments
  • Strong smell — some cats dislike application

Stronghold Plus for Cats

Pros

  • Uses sarolaner — newer ingredient with no known resistance
  • Excellent ear mite coverage
  • Covers fleas, ticks, and key worms
  • Well-tolerated with good safety profile

Cons

  • No tapeworm coverage
  • Prescription only
  • Does not cover lungworm in cats
  • More expensive than basic flea treatments

Compare Prices & Save

Both Broadline for Cats and Stronghold Plus for Cats may be cheaper from a licensed online retailer than from your vet. Ask for a written prescription and compare prices.

Important: This comparison is for informational purposes only and is not veterinary advice. Always consult your vet before starting, stopping, or switching your pet's medication. Prices shown are typical UK ranges and may vary by product size, weight band, and retailer.