Capstar Flea Oral Treatment for Dogs, 2-25 lbs
In a Nutshell
- Mixed effectiveness with many reporting no flea control.
- Serious safety concerns with reports of adverse reactions.
- Some users received empty packages, questioning product integrity.
- Positive reviews mention quick flea relief when effective.
Quick Verdict
While some users report quick relief from fleas, many others experienced ineffectiveness and severe adverse reactions. The product's reliability is questionable, with reports of empty packages and serious health issues in dogs.
Quick Stats
Pet Compatibility
Critical Warnings
Severe adverse reactions, including hospitalization and death in dogs.
Prevention: Consult with a vet before use, monitor pets closely after administration.
Pros & Cons
Pros
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Quick action (2)
Effective in killing live fleas quickly.
Cons
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Not Effective (4) critical
Many users report the product does not work, preventing fleas from infesting or getting rid of fleas when they do get fleas.
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Severe Adverse Reactions (3) critical
Reports of serious health issues, hospitalization, and even death in dogs.
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Package Issues (1) major
Some users received empty packages, raising concerns about product integrity.
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False Advertising Walked Away (4) major
Product does not meet the claims made in its packaging.
Quality Trend: Declining
There is no package fabrication
positive
negative
Who Is This For?
✓ Best For
- • Pets who need fast-acting flea treatment. — Can quickly kill live fleas but no egg protection
✗ Skip If
- • Pet owners with sensitive or react-ant-prone dogs. — Serious health risks and adverse reactions reported.
- • Pet owners looking for long-term protection. — Does not prevent re-infestation
- • Dog owners seeking affordability but effectiveness. — Below-average effectiveness and reported health incidents.
Durability & Care
Cleaning Methods
Care Tips from Users
- 💡 Store in a cool, dry place
- 💡 Purchase from a verified retailer to avoid counterfeits.
Floor Compatibility
Rating Distribution
Common Questions
Is Capstar safe for all dogs?
No, some dogs may have severe adverse reactions. Consult a vet before use.
How quickly does Capstar work?
It is supposed to kill fleas within 30 minutes, but many users report it does not work at all.
Can Capstar prevent future flea infestations?
No, it only kills live fleas and does not affect eggs, so infestations can recur.
Highlighted Reviews
"This just kills the live fleas and it does do it quickly and it works well. It’s not gonna keep them from coming back because it doesn’t kill the eggs, but I had a really bad infestation with four dogs so when I combine this with Frontline, I think I’m getting a hold of the. It definitely did ..."
"Dog was hospitalized due to adverse reaction to the main ingredient in capstar. After 10 days he recovered. The next time he was boarded at the vet clinic they made a mistake and gave him Capstar and he had the same reaction and died due to toxicity within 48 hrs."
Bottom Line
Given the high risk of adverse reactions and inconsistent effectiveness, potential buyers should consider alternatives or consult with a vet before using Capstar Flea Oral Treatment.