Deletik (Fipronil)


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Getting rid of pests in pets is vital because pests like fleas, ticks, and mites can cause significant discomfort and health issues for animals. These pests can lead to skin irritations, itching, allergic reactions, and even transmit diseases. By effectively controlling and eliminating pests, we can ensure our pets’ well-being and overall health, promoting their comfort and reducing the risk of illness.

What Is Deletik (Fipronil)?

Deletik (Fipronil) is a broad-spectrum insecticide that belongs to the phenylpyrazole chemical family. It is effective against many pests, including ants, beetles, cockroaches, fleas, ticks, and termites. The product works by interfering with the nervous system of insects, causing hyperexcitation and ultimately leading to their death. Fipronil is commonly used in pest control shampoos, sprays, baits, and spot-on treatments for pets to control flea and tick infestations. 


What is the formula of Fipronil?

Each ml of shampoo contains:

  • Fipronil – 5 mg
  • Wash base – q.s.

Forms of Fipronil

Medication is available in various forms for different applications. Some common forms of Fipronil include:


It can be formulated into pet shampoos specifically designed to control and eliminate fleas and ticks. Fipronil for fleas shampoo is produced in 200ml bottles and used during bathing to kill and remove pests from the pet’s fur. They are usually lathered and left on for a specific period before rinsing off.


It is also available in Fipronil spray for house, treating infested areas, such as pet bedding, carpets, or furniture. Fipronil liquid helps kill adult fleas and ticks and prevent environmental reinfestation. Following the manufacturer’s instructions and guidelines for safe and effective Fipronil indoor use is essential.


It can be formulated into powders that are applied directly to the pet’s coat. Fipronil powders are usually sprinkled onto the pet’s fur and then spread and massaged into the coat, ensuring coverage of the entire body.

The specific formulations and application methods may vary depending on the product and brand. Always read and follow the instructions provided by the manufacturer to ensure the proper and safe use of Deletik for your pets. Also, consult a veterinarian for guidance on the most suitable form and application method for your pet’s needs.

Uses of Deletik

It is typically a flea drug used when there is a need to control and eliminate pests such as fleas, ticks, and other insects. Here are some situations when it may be used:

1. Pet infestations: Deletik is commonly used in dogs and cats to control flea and tick infestations. It helps kill adult fleas and ticks and provides residual protection against reinfestation. These products may include spot-on treatments, sprays, shampoos, or powders that contain Fipronil.

2. Household pest control: Fipronil-based products can be used in and around the house to control pests like ants, cockroaches, pesticides, and beetles. Fipronil for ants and termites is typically applied to areas where pests are found, such as cracks, crevices, or other potential hiding spots.

3. Agricultural and livestock applications: this product can be used in agricultural settings to control pests that affect crops or livestock. It may be applied as a spray or incorporated into specific formulations for targeted pest control.

Who Can Use Shampoo?

Fipronil-based products can be used in dogs and cats. Always follow the product instructions and consult a professional if you have concerns or questions about using Fipronil shampoo on your pets.

Fipronil for Dogs

This shampoo is primarily designed for dogs to control and eliminate fleas and ticks. Fipronil flea treatment is safe and effective when used according to the instructions provided by the manufacturer for dog-specific formulations. Choose a shampoo specifically labeled for dogs according to Fipronil for Dogs reviews. Avoid using it on other animals unless directed by a veterinarian. 

Deletik for Cats

Is Fipronil safe for cats?

Cats have a different sensitivity to certain chemicals than dogs. Use products specifically labeled and approved for cats when addressing flea and tick issues in feline companions. Feel free to consult a veterinarian for appropriate cat flea treatment with Fipronil.

Dosage Sizes

The frequency and method of using Deletik for pets can vary depending on the specific product and the instructions provided by the manufacturer. So Fipronil dosage for cats and dogs may vary.

How to apply Fipronil for dogs and cats?

Here are some general guidelines for using shampoo on pets: 

  1. Before using a Deletik shampoo, carefully read the instructions provided by the manufacturer. 
  2. Typically, you will wet your pet thoroughly, apply the shampoo to the fur, and work it into a lather, ensuring coverage of the entire body. 
  3. Allow the product to sit for the recommended duration before rinsing thoroughly.

The shampooing frequency will depend on the severity of the infestation and the instructions provided. Some products may recommend weekly or monthly applications. Consult a veterinarian for personalized guidance on how and how often to use Fipronil for your pet. They can consider the pet’s age, weight, health condition, and potential interactions with other medications or treatments. 

Important Safety Information for Owners

Ensure that your Fipronil product is specifically labeled for use on your pet’s species. For example, products designed for dogs should not be used on cats or other animals unless directed by a veterinarian.

Use the product sparingly. Applying more than the recommended amount or using the product too frequently can harm your pet.

The shampoo is typically designed for external use only. Avoid contact with your pet’s eyes, mouth, or open wounds. In case of accidental ingestion or adverse reactions, seek veterinary advice immediately.

Some products with Fipronil may have age and weight restrictions. Ensure you use the product appropriate for your pet’s age and weight category.

Monitor your pet for any signs of allergic reactions or sensitivities after using a Deletik. If you notice any unusual symptoms such as excessive itching, redness, swelling, or difficulty breathing, discontinue use and consult a veterinarian.

Please note that these warnings are general, and it’s essential to refer to the specific warnings and precautions provided by the manufacturer of the Fipronil flea product you are using for the most accurate and up-to-date information.

Veterinary Prescription

In general, Deletik shampoo does not require a veterinary prescription and can be purchased over the counter (OTC). These products are often available in pet stores, supermarkets, or online retailers.

However, it’s important to note that the availability and regulations surrounding Fipronil products may vary depending on your country or region. For example, some countries may have specific regulations regarding the sale and distribution of certain formulations. In addition, specific veterinary-prescribed Fipronil products may also be available for certain uses or situations.


Deletik may have contraindications or precautions that pet owners should be aware of. Here are a few common contraindications to consider:

1. Hypersensitivity or allergic reactions: Some animals may be hypersensitive or allergic to Fipronil or other ingredients in Fipronil-based products. If your pet has a known hypersensitivity or history of allergic reactions to Fipronil or similar insecticides, it is essential to avoid using this product.

2. Underlying health conditions: Pets with certain medical conditions, such as liver or kidney disease, may have reduced tolerance or impaired ability to metabolize Fipronil. Before using Fipronil, inform your veterinarian about your pet’s medical history and any existing health conditions.

3. Age restrictions: Some Fipronil products may have specific age restrictions. Using Fipronil products on very young animals or puppies/kittens below the recommended age may not be safe or effective.

4. Other medications or treatments: Inform your veterinarian about any other medications, treatments, or products your pet is receiving, as there may be potential interactions or conflicts with Fipronil. It’s important to discuss any concurrent treatments or medications with your veterinarian to ensure their compatibility with Fipronil-based products.

5. Species-specific considerations: Each species may have different sensitivities and tolerances, so using Fipronil products specifically formulated for the intended species is crucial.

Side Effects

Like any other medication or chemical, it may have potential Fipronil side effects in dogs and cats. So what are the side effects of Fipronil? Here are some possible side effects that have been reported:

1. Skin irritation: Some pets may experience localized skin irritation or redness at the application site after using Fipronil-based products. This can manifest as itching, scratching, or mild skin reactions. Monitor your pet for any signs of skin irritation and discontinue use if such reactions occur.

2. Digestive upset: In rare cases, ingestion of Deletik or excessive exposure to the product can lead to digestive upset in pets. This may include symptoms such as vomiting, diarrhea, or loss of appetite. If your pet exhibits any digestive disturbances, consult a veterinarian.

3. Neurological effects: The product primarily acts on the nervous system of insects, but in rare cases, it may cause neurological effects in pets. These effects can include tremors, unsteady gait, excessive salivation, or lethargy. If you observe any unusual neurological symptoms in your pet after using a Fipronil product, seek veterinary attention immediately.

4. Allergic reactions: Although uncommon, pets can have allergic reactions to Fipronil or other ingredients in Fipronil-based products. Allergic reactions may manifest as itching, hives, facial swelling, difficulty breathing, or collapse. If you suspect your pet is experiencing an allergic reaction, seek immediate veterinary care.

These side effects are generally rare, and most pets tolerate Fipronil products well. However, if you notice any unusual or concerning symptoms after using a Fipronil product, discontinue use and consult with a veterinarian for appropriate guidance and treatment.


Fipronil overdose in dogs and cats can potentially cause adverse effects. Consult a veterinarian immediately if you suspect an overdose or if your pet has accidentally ingested or been exposed to a higher-than-recommended dose of Deletik. 

Fipronil acts on the nervous system, and an overdose can lead to more pronounced neurological symptoms. These may include tremors, seizures, uncoordinated movements, muscle twitching, or excessive salivation. In addition, ingesting a large amount of Fipronil can cause digestive disturbances such as vomiting, diarrhea, or loss of appetite. 

An overdose of Fipronil can potentially trigger severe allergic reactions in some pets. These reactions may manifest as itching, hives, facial swelling, difficulty breathing, or collapse. 

Fipronil Poisoning

Fipronil toxicity in dogs and cats is possible if a pet is exposed to a significant amount of product or if they have ingested a product containing Fipronil in large quantities. 

How much Fipronil is toxic to dogs and cats? While Fipronil is generally safe for pets when used according to the recommended dosage and instructions, excessive exposure or ingestion can lead to toxicity.

Symptoms of toxicity of Fipronil in pets may include:

  • tremors, seizures, muscle twitching, uncoordinated movements, or excessive salivation;
  • vomiting, diarrhea, or loss of appetite;
  • skin irritation or rash.

Prevention is vital in avoiding poisoning. Always use Fipronil products according to the manufacturer and veterinarian’s instructions. Keep Deletik out of reach of pets, and if accidental ingestion or exposure occurs, contact a veterinarian or animal poison control center immediately.


Deletik should be stored in a cool, dry place, away from direct sunlight and extreme temperatures. High temperatures or excessive moisture can degrade the product and reduce its effectiveness.

Store Fipronil products securely to avoid Fipronil pet and children exposure. Fipronil is an insecticide and should be treated as a potentially harmful chemical. Store it in a locked cabinet or an area where it cannot be accidentally accessed. Also, avoid storing Fipronil products near food items or animal feed to prevent accidental contamination. This helps prevent the risk of cross-contamination and accidental ingestion.

Generic and Brand Names of Deletik (Fipronil) 

Fipronil is available under various generic and brand names. Here are some examples:

Generic Names:

  1. Fipronil

Brand Names for Veterinary Use (as flea and tick treatments):

  1. Deletik (commonly used for dogs and cats)
  2. Frontline (commonly used for dogs and cats)
  3. Frontect (for dogs)
  4. Effipro (for dogs and cats)
  5. Fiprofort (for dogs and cats)
  6. PetArmor (for dogs and cats)

It’s important to note that availability and brand names may vary depending on the country and region. Always refer to the specific product labeling and consult a veterinarian or authorized distributor to ensure you use the appropriate product for your intended application.

Other Drugs in the Same Class

Fipronil belongs to a class of insecticides known as phenylpyrazoles. Here are some other drugs in the same class:

1. Pyriproxyfen;

2. Ethiprole;

3. Fluralaner;

4. Imidacloprid;

5. Thiamethoxam.

These are just a few examples of other drugs in the same class as Fipronil. Each drug within this class may have different specific properties, uses, and target pests. Consult a veterinarian or refer to the specific product labels for more information on individual drugs within the phenylpyrazole class.

Comparison of Fipronil with Other Medicines

Here’s a table comparing Fipronil vs Imidacloprid, Bifenthrin, Indoxacarb, Permethrin, Methoprene:


Chemical Class

Primary Use

Mechanism of Action

Spectrum of Activity

Duration of Action



Flea and tick control

Acts on the nervous system of insects

Primarily effective against fleas




Flea and tick control

Acts on the nervous system of insects

Primarily effective against fleas

Moderate to long-lasting


Synthetic pyrethroid

Outdoor pest control

Affects the nervous system of insects

Broad spectrum against various pests




Flea control

Requires conversion by insect’s enzymes

Primarily effective against fleas



Synthetic pyrethroid

Flea and tick control

Affects the nervous system of insects

Broad spectrum against various pests

Moderate to long-lasting


Insect Growth Regulator (IGR)

Flea control

Disrupts the development of insects

Targets flea growth stages




Broad-spectrum control

Affects multiple parasites, including fleas

Effective against fleas, ticks, heartworms, and intestinal worms

Monthly application

Please note that this table provides a general comparison and may not encompass all aspects of each product. Always refer to specific product labels and consult with a veterinarian for detailed information and guidance regarding the use of these products for your pet’s specific needs.


Does Fipronil Kill Ear Mites? 

The product is not typically used for treating ear mites in pets. While it may have some effectiveness against ear mites, other medications formulated explicitly for ear mite treatment are generally more effective.

Where Can I Buy Fipronil? 

It is for sale in Internet pharmacies. Check the Fipronil reviews and prices and buy Fipronil online.

Can I Use Cat Shampoo for My Dog? 

It’s generally recommended to use products specifically formulated for dogs on dogs and products formulated for cats on cats. For example, cat shampoos are designed for the specific needs and sensitivities of feline skin for cat safety. However, they may contain potentially harmful or irritating ingredients to dogs. 

What If My Dog Licks Fipronil? 

If your dog licks Fipronil after it has been applied, it may experience some gastrointestinal upset, such as vomiting or diarrhea. If you have concerns or your dog exhibits unusual symptoms, it’s best to consult with a veterinarian for advice.

Does Deletik Cause Cancer in Dogs? 

In 2023 there is currently no evidence to suggest that the proper use of Deletik (Fipronil) will cause cancer in dogs. 

Can Fipronil Be Used on Pregnant Dogs? 

Using Fipronil or any other flea and tick medication on pregnant dogs is generally not recommended without consulting a veterinarian. This is because the safety of Fipronil during pregnancy has not been extensively studied, and it’s essential to consider the potential risks and benefits for the mother and her developing puppies. 

Can This Shampoo Cause Seizures in Dogs? 

Seizures are not a common side effect of Fipronil shampoos when used according to the recommended dosage and instructions. However, individual dogs may react differently to specific ingredients or chemicals. If your dog has a history of seizures or you observe any unusual symptoms after using a Fipronil shampoo, it’s best to consult with a veterinarian for a proper evaluation.

How Long Does Fipronil Last on Dogs? 

The duration of action of Fipronil on dogs can vary depending on the formulation and the specific product used. Generally, Fipronil spot-on treatments for dogs protect against fleas and ticks for about 30 days. 

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