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PetPals
Real discussions from product enthusiasts
Fleas Showing Resistance to Frontline Plus
Users frequently discuss that flea populations, especially in regions with mild winters, appear to have developed resistance to Frontline Plus over its 20+ years on the market. This leads to re-infestations within the 30-day treatment cycle for some cats.
Frontline Plus Efficacy vs. Vet-Prescribed Alternatives
Many pet owners report that Frontline Plus has become less effective than newer or prescription treatments like Bravecto or Advocate. Vets often recommend these alternatives for faster parasite kill and better long-term control.
Importance of Home Treatment Alongside Frontline
Community advice strongly suggests that topical treatments like Frontline Plus are insufficient on their own. Comprehensive environmental treatment of homes is crucial to break the flea life cycle and prevent re-infestation.
Frontline Plus Effectiveness and Safety Doubts
Users express concerns about Frontline Plus's declining effectiveness and potential safety issues, with some reporting adverse reactions. This leads to a mixed to negative sentiment, with many seeking vet-recommended alternatives.
Expert answers based on real user experience
Community discussions reveal mixed effectiveness. While FRONTLINE Plus utilizes fipronil and (S)-methoprene to target adult fleas, eggs, and larvae, many users report a decline in efficacy over time. This is often attributed to flea populations developing resistance, particularly in areas with milder climates that allow fleas to survive year-round. Some users in regions like Australia and North Carolina have noted that infestations reoccur within the 30-day protection period, suggesting the need for environmental treatment in addition to topical application. The product's 20+ year history on the market is frequently cited as a factor contributing to this observed resistance.
r/cats, r/CasualUK
User experiences frequently place FRONTLINE Plus below prescription options like Bravecto, Revolution, or Advocate in terms of speed and overall effectiveness. While FRONTLINE Plus works by disrupting the nervous system of fleas and ticks, these alternatives are often reported to have a faster kill-time, meaning parasites die more rapidly after contact with the treated pet. Many pet owners switch to vet-recommended treatments when FRONTLINE Plus fails to prevent re-infestation. These newer options are generally considered superior in managing flea resistance and providing more thorough, long-lasting protection, often targeting a broader range of life stages or parasite types.
Specific, quantified kill rates for FRONTLINE Plus against particular tick species, such as *Ixodes scapularis* (deer tick), known vectors for Lyme disease, are not widely published in user forums or readily available product data. The active ingredients, fipronil and (S)-methoprene, are designed to affect the nervous system of external parasites. However, precise efficacy figures, especially across a range of ambient temperatures from 5°C to 25°C (41°F to 77°F), which influence tick activity, are not detailed. This leaves a gap in understanding its performance under all potential outdoor exposure scenarios where disease transmission risk is elevated.
Product Specifications, User Forums
Detailed statistical data on the incidence rate of adverse reactions, such as tremors or skin irritation, specifically for cats within the 1.5 lbs to 5 lbs weight range treated with FRONTLINE Plus is not publicly available. The product is formulated for kittens as young as eight weeks and weighing 1.5 lbs or more. While manufacturers state that side effects are rare and typically mild, user reports include isolated severe reactions. Without manufacturer-provided studies or post-market surveillance data broken down by small weight categories, it is difficult to provide a definitive risk percentage for this specific demographic.
Frontline
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Protect your cat with the number 1 name in flea and tick protection.(1) FRONTLINE Plus flea and tick control for cats and kittens is a long-lasting, fast-acting, waterproof flea and tick treatment proven to kill adult fleas, flea eggs, flea larvae, chewing lice and ticks. This flea and tick treatment kills ticks that may transmit Lyme disease. FRONTLINE Plus for Cats has been trusted by pet owners for over 20 years.(2) This month-long treatment is made for cats eight weeks or older, weighing 1.5 pounds and greater. Made with two active ingredients, fipronil and (S)-methoprene, this treatment breaks the flea life cycle by killing adult fleas as well as the eggs and larvae and prevents new infestations. One fast-acting topical application protects for a full 30 days. References: (1) BI Marketing Excellence Survey performed by Kynetec, November 2023. (2) 20 years of trust in killing fleas and ticks demonstrated by various studies in the past 20 years including a 2002 Pet Owner Brand Awareness and Attitude Tracking Study performed by Bruno and Ridgway Research Associates and the 2023 BrandSpark© American Trust Study where FRONTLINE Brand Products were voted most trusted for brand for flea & tick prevention.
| UPC | 350604287407 010756261402 742583966518 |
| ASIN | B0002J1F76 |
| GTIN | 350604287407 010756261402 742583966518 |
| Brand | Frontline |
| Scent | Unscented |
| Volume | 339 Milliliters |
| Pet Type | Cat |
| Item Form | Stick |
| Brand Name | Frontline |
| Department | Pet Supply |
| Scent Name | Unscented |
| Item Volume | 339 Milliliters |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Boehringer Ingelheim Animal Health |
| Model Number | FL287410 |
| Item Type Name | Frontline Plus for Cats and Kittens (1.5 pounds and over) Flea and Tick Treatment, 3 Doses |
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FRONTLINE Plus Flea and Tick Treatment for Large Dogs Up to 45 to 88 lbs. 3 Treatments
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FRONTLINE Plus Flea and Tick Treatment for Small Dogs Upto 5 to 22 lbs. 3 Treatments
FRONTLINE
FrontLine Povidone Iodine Swabs, 10% More Iodine Antiseptic Solution, Cotton Swabsticks for Wound Care, Nasal Cleansing, First Aid & Medical Supplies, Individually Wrapped Box of 50
Digital Spy Forum, Mumsnet
Yes, the overwhelming consensus from pet owner forums emphasizes the critical importance of environmental treatment alongside FRONTLINE Plus application. The product effectively kills fleas and ticks present on the cat, but it does not eliminate flea eggs and larvae residing in carpets, upholstery, and bedding. Discussions consistently highlight that failure to treat the home environment can lead to ongoing infestations, even with monthly application of topical treatments. Sprays and foggers designed to kill flea eggs and prevent hatching are recommended as key companions to the topical medication for complete eradication.
r/cats, Mumsnet
Product Specifications, User Forums
| Target Species | Cats & Kittens (1.5 lbs. & over) |
| Customer Reviews | 4.3 4.3 out of 5 stars (49,459) 4.3 out of 5 stars |
| Best Sellers Rank | #173 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Cat Flea Drops |
| Item model number | FL287410 |
| Active Ingredients | Fipronil (9.8%)|(S)-Methoprene (8.8%) |
| Product Dimensions | 6 x 4.5 x 0.5 inches; 1.13 ounces |
| Included Components | Package includes 3 applicators |
| Allergen Information | Abalone Free |
| Date First Available | October 2, 2001 |
| Warranty Description | No Warranty |
| Age Range Description | All Life Stages |
| Age Range (Description) | All Life Stages |
| Manufacturer Part Number | FL287410 |
| Manufacturer recommended age | 1 month and up |
| Is Discontinued By Manufacturer | No |
