Almost every pet owner has to deal with the problem of fleas or ticks. It's good if they only hear about it through hearsay—in conversations with other pet owners or on social media when discussing preventative measures. But in any case, when the topic of flea or tick control in dogs and cats comes up, the name Bars is sure to come up. Let's try to find out why Bars is so popular.
Content
Bars drops for fleas and ticks in dogs and cats
Even if a medication is prescribed by a specialist, it's still a good idea to familiarize yourself with its specific features. And if the medication was recommended by friends, it's especially important to find out how to use it and any important considerations.
Release form
Bars drops for external parasites are available as a ready-to-use solution. It is a clear, slightly yellowish oily liquid with a mild odor. For ease of use, the drops are pre-packaged in plastic pipettes with varying dosages.
Veterinarians recommend using Bars drops, which are produced separately for each category of pet.
Photo gallery: Bars drops for external parasites
- The Bars drops for cats are packaged in 3 pipettes of 1 milliliter each.
- The package of Bars drops for dogs contains 4 pipettes of 1.4 milliliters of the product.
- For dogs weighing from 2 to 10 kg, 1 pipette of Bars drops with a capacity of 1.4 milliliters is sufficient.
- For dogs weighing from 10 to 20 kg, a double dose of Bars drops is provided in 1 pipette of 2.8 milliliters.
- For large breed dogs weighing from 20 to 30 kg, Bars drops are available in a multiple dosage of 4.2 milliliters of the product in 1 dropper pipette.
- For the largest four-legged friends, whose weight exceeds 30 kg, the package of Bars drops includes 2 dropper pipes with 5 milliliters of the product.
There's a separate line of Bars drops—Bars Forte. The differences between the products lie in the dosage, the addition of active ingredients, and the adjustment of auxiliary components.
Photo gallery: Bars FORTE drops for ticks and fleas
- The package of Bars Forte drops for cats includes 3 dropper pipettes.
- The package of Bars Forte drops for dogs includes 4 doses of the product.
- For puppies, the package of Bars Forte drops contains 4 specially dosed portions of the product.
- For kittens, Bars Forte drops are packaged in 3 dropper pipettes, which differ from the “adult” portion in that they contain a lower content of active ingredients.
The packaging and composition of Bars Forte drops for kittens and puppies eliminate the possibility of overdose.
Composition and principle of action of Bars drops against ticks, fleas and lice
Bars drops are classified as insecticidal acaricidal agents. This means they are designed to kill both ticks and other harmful insects.
Compound
The product contains the following active ingredients:
- fipronil (the dosage depends on the intended purpose: for cats - 10 mg/ml, for dogs - 50 mg/ml);
- diflubenzuron - 1 mg/ml;
- dicarboximide (MGK-264) (the dependence is the same: for cats - 1 mg/ml, for dogs - 5 mg/ml).
And excipients:
- isopropyl alcohol - 50 mg/ml;
- polyvinylpyrrolidone - 30 mg/ml;
- Tween 80 - 30 mg/ml;
- polyethylene glycol 400 - up to 1 ml.
Because it contains multiple active ingredients, the product is called a combination product. Each component has its own mechanism of action. The insecticide fipronil blocks the receptors of ectoparasites (external parasites), leading to paralysis and subsequent death of the pests.
The pesticide diflubenzuron acts on the eggs and larvae of parasites, and dicarboximide is a synergist (an agent that increases the activity of the components).
All of the listed active ingredients are not absorbed into the bloodstream; they concentrate in the upper layers of the skin and at the base of the hairs, protecting your four-legged pet from fleas, ticks, and lice for 1–2 months.
Operating principle
When applied to the pet's skin, Bars drops paralyze the mouth apparatus of the blood-sucking parasite.
Consequently, the pest has no opportunity to inject saliva and any harmful components it may contain into the bloodstream. The bloodsucker then faces an unenviable fate: nervous system overload, widespread paralysis, spasms, convulsions, and death.
A pesticide that inhibits chitin synthesis controls parasite larvae and eggs. After using Bars drops, the larva is unable to hatch from the chitinous egg, and the emerging parasitic worm survives only until the next molt.

The use of Bars drops also includes preventative measures: your pet is protected from parasite attacks while outdoors.
According to their effect, Bars drops are classified as moderately hazardous substances (hazard class 3). When used according to the instructions, your pet will not be at risk of poisoning or skin problems in the areas where it is applied. However, you should be careful not to let the drops get into the animal’s eyes, as this may cause irritation of the conjunctiva.
Important! Bars drops for external parasites in pets are toxic to fish and rabbits.
Popularity compared to analogues
Bars drops against ectoparasites have both undeniable advantages and properties that can raise questions among pet owners.
The benefits of using Bars drops include:
- High efficiency: Bars drops kill harmful bloodsuckers at all stages of development, completely eliminating the infestation;
- Availability: Bars drops can be purchased at any veterinary pharmacy, the average cost is about 100-150 rubles per package;
- ease of use: the product does not need to be crushed, diluted, or added anywhere - it is already prepared, dosed, and packaged in special dropper pipettes;
- long-lasting effect: up to two months;
- Minimal risk of side effects: drops are applied to the withers - the most difficult to reach place for any pet.
The disadvantages of the product include:
- use of active substances: every insecticide has toxicity, therefore, it is impossible to give a guarantee of the complete harmlessness of any agent included in the composition of the insecticide;
- Possibility of individual intolerance: unfortunately, it is impossible to guarantee the absence of an allergy to any of the components.
But now it's clear why Bars drops for fleas and ticks are so popular: they're convenient, affordable, and high-quality, even taking into account the potential downsides inherent to every alternative. It's worth remembering that if a manufacturer claims that their insecticide is non-toxic or that a complex product is completely hypoallergenic, then the information is not entirely accurate.
Using Bars drops to combat ticks and fleas
Bars drops for combating external parasites can be used as a treatment for pets or as a remedy against an already attached tick.
Important! The instructions for treating external parasites with Bars drops differ from the instructions for treating attached ticks.
Treatment with Bars drops against fleas, lice and ticks
To ensure Bars drops are fully effective against fleas and ticks, consider several factors before using them:
- The division of drops into "cat" and "dog" is not driven by marketing, but by effectiveness and safety measures. Drops for cats and drops for dogs differ not only in the dosage of the medication itself, but also in its components.
- If you have several pets, then the treatment must be carried out on all of them at the same time.
- Before treatment, the pet must be weighed in order to correctly calculate the dosage.
- Serious scratches or other wounds. It's important to remember that Bars drops should not be applied to damaged skin.
- Expiration date. The product must not be expired.
Before treatment, conduct an allergy test on the animal: place one drop of the product on the withers and observe the reaction.
Use Bars drops against ticks and fleas strictly according to the instructions. The drug is designed for a single use and can be used both as a means of combating existing parasites and as a preventative measure.
When applying drops against ectoparasites, wear rubber gloves.
All four-legged pets are treated with drops in the same way:
- The fur on the animal's withers must be parted.
- Apply the drops to areas where your pet cannot lick or otherwise reach the product (base of the skull, area between the shoulder blades).
- Wait until completely dry.
After treatment with Bars drops, the animal should be kept away from all contact for half an hour. A muzzle can be placed on the dog, and the cat can be held to prevent it from grooming itself. Children will be allowed to pet their pet only after three days.
Recommendations after treatment:
- If it is snowy or cloudy outside, your pet should not be let outside for 2–3 hours.
- Bathing your pet will have to be postponed for at least 3 days.
- You can re-apply Bars drops against fleas and ticks no earlier than after 30 days.
- The use of other antiparasitic agents is possible no earlier than 10 days after treatment with Bars drops.
- The pet's sleeping area should also be treated. The pet's favorite spots in the home may also require treatment.
- If you have treated several pets, you must isolate them from each other until the product has completely dried.
Removing an attached tick
If you notice a blood-sucking parasite has already attached itself to your pet, you should follow the other instructions (which are always included with Bars flea and tick drops).
- Apply a drop of the product to the tick and wait about 30 minutes. The tick should fall out.
- If the tick remains embedded in the skin after half an hour, gently twist it out. Gently twist the tick in any direction while simultaneously pulling it out, but do not yank it out abruptly.
- If the tick shows signs of life, it is worth taking it to a laboratory to determine the degree of risk of disease infection.
- If testing is not possible, the parasite must be destroyed, but not by hand: the tick can be burned, boiled, or crushed using available means, avoiding direct contact.
- If the tick has attached itself after treatment with Bars drops, it means that their effectiveness has expired and further treatment is required.
If an infestation occurs less than a month after treatment with Bars drops against fleas and ticks, you should check the expiration date and authenticity of the product, as well as the correct dosage.
Features of using Bars drops for kittens and puppies
For the youngest pets, the Bars line of drops includes tick and flea treatments under the Bars Forte brand. This line differs from the standard product not only in its composition but also in its reduced concentration of the active ingredient, fipronil. Bars Forte contains an insect growth regulator, which allows for more effective control of ectoparasites.
The special features of treating puppies and kittens with Bars Forte drops include:
- Strict age control. Kittens and puppies should not be treated with Bars or Bars Forte drops before they reach 10 weeks of age.
- Be especially careful with dosage and follow the instructions precisely: for a puppy or kitten weighing up to 1 kg, you will need only 0.18 ml of the product (approximately 4 drops).
- You can bathe your little furry friend as often as needed: shampoo and water do not reduce the effectiveness of Bars Forte drops.
Otherwise, the methods for treating a puppy or kitten with Bars Forte drops against external parasites are no different from treating an adult pet with Bars or Bars Forte drops.
Contraindications and possible side effects
Any medication has contraindications. The manufacturer of Bars drops for external parasites warns that they should not be used on pets in the following cases:
- Illness or general weakness.
- Young age (less than 10 weeks).
- Underweight. This is typical of toy dogs, which weigh less than 2 kilograms even when they reach adulthood.
- Skin damage. Avoid the risk of the product entering the animal's bloodstream.
- Pregnancy or lactation of puppies in females.
- Treatment with other medications. Bars tick and flea drops cannot be combined.
- Expiration of the drug or doubts about its authenticity.
After using the drops, it is necessary to observe the pet for some time. In case of negative signs: itching, trembling, redness or irritation of the skin, salivation, tearing or vomiting, it is necessary to immediately wash the animal using shampoo or any special detergent for animals. If symptoms persist, you should consult a specialist.
Reviews
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and biting lice—and not just for dogs. Pros: inexpensive, odorless, provides good protection. Cons: none.
I bought this product for my dog. I took a stray puppy home to my parents' village, but discovered he had more than one. He was constantly scratching himself, and his belly was covered in scabies. I didn't bother trying to figure out if it was fleas or a mite, so I went to the pet store and they recommended "Bars." One ampoule per 2-10 kilograms of the animal's weight. Application was straightforward; it's quite simple. Open the ampoule and apply a few drops to the withers and along the spine (onto the skin) to prevent the animal from licking it off. The product is absorbed and spreads throughout the body via the sebaceous glands, as I understand it. Then I don't wash the dog for a day or two—and that's it, the treatment is complete. My dog is now parasite-free and practically no longer itchy. Excellent product for the money. I recommend it!
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice. Dogs are like people, only smaller and furry. Pros: Good protection against parasites, easy to use. Cons: Not a very pleasant smell.
Summer is the time when you need to be especially careful about protecting your dog from parasites, although this also needs to be done in spring and autumn, and in winter, even though there are no ticks, you should still be mindful of fleas and some other bugs.
We certainly don't wait for problems to arise; we always treat our beloved dog for preventative treatment, and so far we haven't seen a single flea on her. The same goes for ticks and lice (I don't know what lice are or what they look like, but the idea is clear... we really don't want anyone eating our dog's beautiful, shiny fur). Bars drops are a well-known product, and we decided to buy them as well. We needed two dropper ampoules for a dog weighing just over 20 kg.
One such dropper costs 48 rubles—a reasonable price. For prevention, the drops should be used once a month, and the effect doesn't diminish even after bathing. Using them is simple: break off the tip of the dropper, apply to the dog's withers and along the spine, preferably with a rubber glove, and rub in gently. The key is to apply the drops in a way that prevents the animal from licking the area. The smell is distinctive, not pleasant, but it's worth it for this purpose; the stench isn't that bad. It provides good protection.
Our beloved runs everywhere, plays very actively and interacts with other animals, digs the ground, scurries through thickets and bushes, runs like crazy, and it's not always possible to physically protect her from dangerous places (in terms of parasites). But "Bars" protects her. It's a good product, and I highly recommend it.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice are a necessary treatment. Pros: Inexpensive, convenient, and quite effective. Cons: The treatment must be repeated; the dropper is inconvenient.
Spring and fall are tick season, which pose a threat not only to humans but also to our furry friends. Pets are more likely to suffer from these parasites, as they spend more time outdoors, interacting with nature, and often have thick fur, which is a favorite habitat for ticks, fleas, lice, and chewing lice. Parasite treatment is essential if you want your pet to live a long and happy life. Ticks are very dangerous! Therefore, pets' fur should be treated regularly. If you use Bars drops, this should be done every two months. It's not that expensive and not at all difficult. The package contains four droppers; pet stores often sell them individually. If you buy a whole box, it comes with instructions and advertising, along with stickers for the pet's passport. There are also four stickers for each dropper.
The dropper itself, frankly, isn't very convenient. I cut it off with scissors and poured it onto the withers. Between the shoulder blades and behind the ears. Where the dog can't reach with his tongue. The neck is where ticks most often settle. You need to use different drops for the ears. Once you've treated the dog for the mites, it's time to go for a walk. Apply for a month, then be sure to repeat.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice are inexpensive, effective, and effective. Pros: protects against ticks, not too expensive. Cons: lasts 3 weeks, washes off with water.
Protecting your dog from ticks from spring to late fall is a real challenge. It seems like just a tiny parasite, but it can cause a ton of problems! Fatalities from tick bites are not uncommon, but rather the norm. There are dozens of products on the pet market: drops, collars, sprays. Which one should you choose? I bought two collars last year… one was cheap—I don't recommend it.
We wore the other collar all summer and fall; it was expensive, costing almost 1,000 rubles. This year, I decided to try Bars drops. I'd heard so many positive reviews, and now we've been using them for three months now, and not a single tick has been detected (I hope I don't jinx it...). The amount of drops is calculated based on the dog's weight: 1 pipette per 10 kg. Mine weighs about 22, so I use two pipettes (which cost 180 rubles). Apply the drops along the spine to the skin! The positives: we haven't picked up a single tick, which is the most important thing!
Cons: May cause allergies in dogs with sensitive skin (Shar Pei, Bull Terriers, Jack Russells); easily washed off with water – their effectiveness doesn't last long, and more details are available here. The packaging states that the drops protect against ticks for 4 weeks! BUT!! According to numerous dog owners I know, these drops only really protect against ticks for about three weeks!! And that's only if the dog hasn't been swimming in water or exposed to heavy rain. However, compared to other tick drops, Bars drops are more affordable and offer better protection (for example, Advantix costs about 350 rubles per dropper). Many recommend buying Bars spray as additional protection.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice—good protection against ticks. Advantages: protection against fleas and ticks. Disadvantages: none found.
We use Bars drops to protect our dogs from ticks. We have three East Siberian Laikas who live in a kennel. We've been using this product for quite some time. We also once bought Bars spray, but we didn't like it as much. The drops protect dogs not only from ticks, but also from fleas, lice, and biting lice. The product should be applied to the animal's skin along the spine. The effect against fleas lasts for two months, but against ticks, it lasts only for a month, after which a repeat treatment is necessary. A tick bite can cause encephalitis, which is very difficult to treat, especially if you don't seek veterinary attention immediately. But using this product, you don't have to worry about that.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice—for small breeds, you should definitely choose a different product. Pros: price, protection. Cons: annoying smell, oily base.
When we first got our dog and were completely clueless about the various products, drops, and sprays she needed, we decided to consult with the veterinarian about what exactly Alka needed. They recommended drops for fleas, ticks, lice, and biting lice. I can't say anything against these drops; for a season and a half, touch wood, we haven't had any attacks. But the smell of these drops drove not only little Alka crazy, but also her owners. I'm very sensitive to strong odors, so I had someone else treat the dog. The drops are also oily, so her fur gets dirty quickly after use.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and biting lice—the owner is safe and the pet is protected! Advantages: Effective. Disadvantages: Individual intolerance.
Like many pet lovers (or rather, family members), I, like many other pet lovers, have been wondering about choosing a product to protect my pet from ticks during the fall and spring. I have a female Golden Retriever, and she's almost 8 years old! All this time, I've been using AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and lice. My dog and I love walking in the forest (thankfully, we have a forest in the city), where, unfortunately, blood-sucking insects (ticks) live. Their bites can be not only painful but also dangerous to my pet's health, and even life-threatening! When I went to the veterinary pharmacy to inquire about an effective remedy for tick and other harmful insect bites, they recommended this product. And, frankly, I'm very happy with it. During all this time, my dog was not bitten by a single tick!
Although she's quite adept at running through the bushes! The credit here goes not only to the preventative examination and brushing, but also to the product's effectiveness. It retains its active properties for 1-2 months, depending on how often you bathe your dog. We do, of course, experience some temporary discomfort in our pets, which subsides within 3-4 hours! But this is an individual reaction (they might dislike the smell), although we (humans) don't notice it. When using it on your pets, observe their reactions! And also check their tolerance (any allergies, swelling, irritation, etc.). The price is around 50-60 rubles per pipette. I haven't noticed any difference with the more expensive BARS Forte. Four treatments a year are enough for my pet's protection (it falls during winter). So, I recommend it, as it's available in almost all veterinary pharmacies.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and biting lice—just apply one drop and forget about the problem! Pros: effective, easy to apply. Cons: reactions vary.
I saw a review of Bars drops and wanted to add my own glowing review. Why not give them a shout-out when there's a reason?! We've been using Bars for many years, testing them on both our current dog and our previous pet. The drops are designed to protect against fleas, ticks, lice, and lice, but our main target has always been ticks. These tiny parasites are swarming around our dachas. Two years ago, we had a hellish spring: our dog would catch 20-30 ticks in a 10-minute walk.
I'd return from the fields, spread it out in front of me, and remove the bloodsuckers one by one. That same year, the dog contracted some kind of tick-related illness. At the veterinary clinic, I asked the vet why we'd given her a course of Bars before the summer season, but we were still managing to remove 20 ticks in 5 minutes. "Without the drops, we'd remove 300," the vet replied. How Bars works: apply a drop of the bottle's contents to the animal's withers, out of its reach. One bottle per 10 kg of body weight. The dog may feel lethargic for several days after applying the product. At least that's how it was with my former favorite—she could smell Bars a mile away and hid to avoid being "treated." ))) Overall, nothing serious happens. Ticks may attach to an animal, but they become somewhat lethargic and are pulled out as easily as a knife through butter. "Bars" does its job—it repels parasites. However, it's recommended to repeat the course after 2-3 months.
AVZ "Bars" insecticidal acaricidal drops for dogs against fleas, ticks, lice, and biting lice—we love this product and use it regularly for prevention. Pros: It works for us, it's a good product. Cons: There don't seem to be any downsides.
In the summer, we live outside the city, and our German Spitz runs freely wherever she pleases. We noticed that from time to time, she'd jump up, hoping to get a bite above her tail. When I examined her, I noticed a small black insect. The vet recommended this remedy.
We use it twice a year. It's a good product; after this preventative treatment, my dog behaves calmly. The box contains four 1.4 ml dropper pipes. The drops are designed to combat fleas, ticks, scabies mites, lice, and lice. These drops are for dogs only. Apply the product to dry, intact skin, parting the fur, in several spots along the dog's back. The drops are inexpensive, only 60 rubles. An indispensable product for our furry friends.
After learning about how Bars tick and flea drops work, their application, cost, and reviews, you can understand why veterinarians recommend them. The balance of safety, quality, and price—factors that primarily concern pet owners—has made Bars drops popular among experienced pet owners who practice self-treatment.



























