Panacur C Canine Dewormer
- Dewormer
- 3
- Granules
- White
- Better rated than 71%
- More reviewed than 74%
A granule-form fenbendazole dewormer dosed across three consecutive days, straightforward to administer by mixing into food for dogs up to 20 lb per included set.
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How it ranks among the 42 dewormers we track
4.7★ across 3,600 Amazon ratings, Bayesian-smoothed toward the category average.
3,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
3,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 42 dewormers we track - how the scorecard works · full dewormers data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Panacur C is a fenbendazole-based canine dewormer sold as 2-gram granule packets, with this listing containing three packets that together treat a dog up to 20 lb over a 3-day course.
Fenbendazole is a broad-spectrum dewormer used in veterinary practice, and Panacur is Merck's branded granule form meant to be mixed into a dog's regular food. The 3-day dosing schedule is a defining feature: this is not a single-dose product like some over-the-counter dewormers.
- 2 gram packets, 3 included
- Fenbendazole active ingredient
- Mixes into moistened food
- Made by Merck
Who it's for
Dog owners treating or preventing common intestinal parasites who need a granule dewormer that mixes into food rather than a pill. Dosing is weight-based, so owners with dogs meaningfully over 20 lb will need to adjust packet count accordingly.
Strengths and trade-offs
Drawn from this product's published specifications.
- Granule form mixes directly into regular food
- Treats up to 20 lb per 3-packet set
- Widely used fenbendazole active ingredient
- Requires dosing on 3 consecutive days, not a single dose
Performance notes
The granules are mixed into a dog's usual food once daily for three consecutive days, with dry food needing to be moistened first to help the granules combine evenly. Consistency across all three days is central to how fenbendazole works, since it targets parasites through repeated exposure rather than a single knockdown dose.
Specifications
| Brand | Panacur |
|---|---|
| Model | 446600-C |
| Dimensions & fit | |
| Item Weight | 0.3 ounces |
| Item Package Dimensions L X W X H | 3.8 × 3.4 × 1.4 inches |
| Item Dimensions Lxwxh | 2 × 2 × 1 inches |
| Capacity & performance | |
| Age Range Description | dogs |
| Construction & materials | |
| Material | Granules |
| Color | White |
| Included components | |
| Included Components | Panacur C Canine Dewormer (3 x 2-gram packets treats 20 lbs.) |
| Other details | |
| Number Of Items | 3 |
| Target Audience Keyword | dogs |
| Customer Reviews | {'ratings_count': '3,676', 'stars': '4.7'} |
| Model Name | Panacur C, 2gm |
| Specific Uses For Product | Active |
| Directions | Mix the daily dose with a small amount of your dog’s usual food. Your dog should eat all of the medicated food. If feeding dry dog food, it may need to be moistened to aid mixing. Repeat the daily dose for 3 days in a row |
| Asin | B00028ZLDG |
| Breed Recommendation | All Breed Sizes |
| Manufacturer | Merck |
| Date First Available | December 28, 2006 |
| Item Model Number | 446600-C |
Other Panacur dewormers
How it compares
This product against the closest alternatives we track in dewormers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Panacur C Canine DewormerThis product | 4.7 / 5 | 3,600 | 4.6 / 5 |
| PetArmor 7 Way De-Wormer for DogsPetArmor | 4.6 / 5 | 33,000 | 4.6 / 5 |
| Elanco Chewable Quad Dewormer for Small DogsElanco | 4.6 / 5 | 11,700 | 4.5 / 5 |
| Aurora 50Mg/Ml Oral Pro Pyrantel Pamoate Oral SuspensionAurora | 4.7 / 5 | 3,900 | 4.5 / 5 |
| Nemex-2 Wormer 2ozNemex-2 | 4.7 / 5 | 2,900 | 4.4 / 5 |
Similar dewormers from other brands
Questions about the Panacur 446600-C
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How many days do you give Panacur C?
The directions call for repeating the daily dose for 3 days in a row.
What weight of dog does one package treat?
The included 3 packets are sized to treat a dog up to 20 lb.
Do I need to change my dog's food to use this?
You mix the dose into your dog's usual food; dry food may need moistening to help it mix in.