
OnGuard Plus Flea Tick Spot Treatment 23-44 lbs 12 Doses
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Price facts
- Last seen at $21.52 at Chewy on Nov 11.
Our take on the OnGuard Plus Flea Tick Spot Treatment 23-44 lbs 12 Doses
OnGuard Plus is a topical spot-on flea and tick treatment for dogs in the 23–44 lb range, sold as 12 monthly doses (six two-packs). Each dose goes on the skin between the shoulder blades and is claimed to kill fleas and ticks and repel them for a month. It is a budget alternative to vet-channel brands like Frontline Plus and Advantage II, which use well-known active ingredients and have long safety records. Reviews of this type of spot-on are mixed: owners like the convenience and the multi-month supply, but some report skin irritation at the application site and uneven flea control.
- 12 monthly doses in one box, so a full year of coverage per dog
- Simple spot-on application, no pills or collars
- Targets both fleas and ticks
- Sized specifically for 23–44 lb dogs
- Cheaper per dose than most vet-brand spot-ons
OnGuard Plus Flea Tick Spot Treatment 23-44 lbs 12 Doses prices at every store
- ChewyNew
Out of stock
$21.52+ $4.95 shippingChecked 1 h ago
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OnGuard Plus Flea Tick Spot Treatment 23-44 lbs 12 Doses price history
Lowest price we've seen: $21.52 on Nov 11 at Chewy. Tracked across 1 store since Nov 11.
What reviewers say
Owners of this type of budget spot-on generally find it easy to apply and good value for a year's supply, but results are inconsistent. Some report fleas returning within weeks, and a minority mention skin irritation at the spot.
- EfficacyMixedSome owners see fleas and ticks cleared for the full month; others find fleas return within a couple of weeks.
- Skin irritationCriticisedA minority report redness, scratching or a small bald patch at the application site.
- ApplicationPraisedOwners find the spot-on tube easy to part the fur and apply between the shoulder blades.
Questions and answers
- How often do I apply it?
- One tube per month per dog. The box holds 12 doses, so it covers a full year for one dog in the 23–44 lb range.
- Is it safe for puppies?
- Follow the label's minimum age and weight. Spot-ons of this type are usually not for puppies under about 8 weeks or under the stated weight range.
- Can I use it on cats?
- No. This is formulated for dogs in the 23–44 lb range; dog spot-ons can be toxic to cats.
- How does it compare with Frontline Plus or Advantage II?
- Those brands disclose well-known actives and have long safety records. OnGuard Plus costs less per dose but has a less transparent formula and more mixed owner reports.
- Can I bathe my dog after applying it?
- Wait at least 48 hours after application before bathing or swimming, and check the label for how often bathing is allowed afterward.
- What is in the box?
- Six two-packs, 12 single-dose applicator tubes total, sized for dogs weighing 23–44 lb.



