Barrier® Dosage Calculator for Dogs
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Dosage Results
The dosage of Barrier® (imidaclopid + moxidectin) is based on your dog’s body weight, as Barrier® Dosage For Dogs is supplied in pre-measured tubes that are applied topically. This prescription, once-monthly topical medication is approved for dogs and puppies 7 weeks of age or older that weigh at least 3 pounds. If used properly it is good for the prevention of heartworm disease, treatment of the circulating microfilaria of heartworm in heartworm infected dogs, killing adult fleas, treatment and prevention of flea infestation, sarcoptic mange (scabies), and several common intestinal parasites such as roundworms, whipworms and hookworms. It is also effective for the treatment and control of ear mite infestations in dogs.
This guide includes a veterinarian-informed Barrier dosage For Dogs calculator By Weight, dosage chart based on weight, information about proper application, safety warnings, potential side effects, and answers to common questions. We’ll also discuss when to start monthly heartworm treatments, what size tube you should use and why it’s important that your dog receive a negative heartworm test prior to treatment unless your veterinarian advises otherwise. By following the recommended dosing schedule and your veterinarian’s advice, you can help protect your dog against both internal and external parasites throughout the year.
Key Takeaways
- Barrier dose for dogs is a topical prescription once monthly treatment that contains Imidacloprid and Moxidectin to provide broad-spectrum protection against parasites in dogs.
- Protects against heartworm disease and is effective against circulating microfilaria of heartworm in heartworm-positive dogs.
- Kills adult fleas and treats and controls flea infestations, sarcoptic mange, ear mites, hookworms, roundworms and whipworms.
- Approved for dogs and puppies at least 7 weeks old that weigh 3 pounds (1.4 kg) or more.
- They come in pre-measured applicator tubes designed to dispense the correct amount for a particular body weight, so make sure you get the correct tube size for your dog.
- Applied directly on the skin once a month for permanent protection against internal and external parasites.
- Prior to treatment, a negative heartworm test is recommended, and it is recommended to test for heartworm annually while taking the medication.
- Do not apply orally, avoid licking the treated site for 30 minutes after treatment and children are advised to stay away from the treated area for at least 2 hours.
Barrier® Dosage Chart For Dogs By Weight
(Note: The active ingredients, Imidacloprid and Moxidectin, are listed in milligrams (mg) rather than milliliters (mL) to reflect accurate veterinary measurements based on the tube volume).
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| Dog Weight (lbs) | Product | Volume (mL) | Imidacloprid (mg) | Moxidectin (mg) |
| 3 – 9 | Barrier 9 | 0.4 | 40 | 10 |
| 9.1 – 20 | Barrier 20 | 1.0 | 100 | 25 |
| 20.1 – 55 | Barrier 55 | 2.5 | 250 | 62.5 |
| 55.1 – 88 | Barrier 88 | 4.0 | 400 | 100 |
| 88 – 110 | Barrier 110 | 5.0 | 500 | 125 |
Administration Note: Apply the entire contents of the correctly sized tube topically once a month. Do not apply to irritated skin.
What Is Barrier for Dogs?
Barrier Dosage for Dogs is a once-monthly topical prescription parasite preventive that contains 10% imidacloprid and 2.5% moxidectin. It comes as a colourless to yellow ready-to-use solution in single dose tubes (applicators) and is applied directly to the skin for broad-spectrum protection against both internal and external parasites. May be used in dogs and puppies 7 weeks or older and at least 3 pounds in weight.
Barrier is effective against heartworm disease, acts as a treatment for circulating microfilaria of heartworm, kills adult fleas, treats and controls flea infestations, sarcoptic mange (scabies), ear mite infestations and several common intestinal worms such as hookworms, roundworms and whipworms.
Imidacloprid Dosage is effective against external parasites, and moxidectin is effective against heartworm and intestinal parasites to provide a complete topical treatment every month. Formulated based on your dog’s body weight, each dose provides at least 10mg/kg (4.5mg/lb) of imidacloprid and 2.5mg/kg (1.1mg/lb) of moxidectin for effective protection when used as directed by your veterinarian.
Uses of Barrier for Dogs
Barrier treatment for Dogs is a prescription topical product that offers total protection from internal and external parasites and is applied once a month. It can be used to prevent heartworm disease, treat circulating microfilaria, kill adult fleas and treat several common dog parasites. When administer as directed, provides convenient long-lasting protection against parasites for puppies and dogs 7 weeks of age or older, and 3 lbs (1.4 kg) or more.
Barrier is used for the purpose of:
- Save lives from heartworm, Dirofilaria immitis.
- Treat microfilarial heartworm in dogs that are heartworm-positive.
- Kill adult fleas and treat active flea infestations (Ctenocephalides felis).
- Treatment and control of sarcoptic mange (canine scabies) Sarcoptes scabiei var. canis.
- Manage and prevent hookworm (Ancylostoma caninum, Uncinaria stenocephala).
- Control roundworm infections (Toxocara canis and Toxascaris leonina).
- Prevent, treat and control whipworm (Trichuris vulpis) infections.
- Monthly control of a wide range of parasites in a single topical application.
When prescribed by a veterinarian, Barrier Dosage For Dogs is an FDA-approved OTC medication containing a combination of imidacloprid and moxidectin to provide a convenient all-in-one solution for routine canine parasite prevention and treatment.
Benefits of Barrier for Dogs
Once a month, Barrier Medication for Dogs provides broad spectrum protection from parasites, making it a convenient way to keep your dog healthy. Combination of imidacloprid and moxidectin provides protection against many internal and external parasites in a single topical application.
Barrier for Dogs Key Benefits:
- Multi-parasite (Broad spectrum) protection against heartworms, fleas, intestinal worms and other common parasites.
- Extended monthly coverage that lasts up to 4 weeks with one application.
- Simple, convenient, easy to apply topical formula that pet owners can use at home.
- Quick response, helping to remove current infestations and minimising the risks of future infestations.
- Convenient one-in-one treatment, eliminating the need to use more than one product to treat parasites.
- Prescription medicine trusted by veterinarians for its proven effectiveness in routine prevention and control of parasites.
- Helps keep your dog healthy and comfortable by reducing the risk of various types of illness and infestation caused by parasites.
How Barrier for Dogs Works
Barrier for Dogs Dosage is a combination of two active ingredients – imidacloprid and moxidectin, which provide protection against a broad spectrum of internal and external parasites. Once the topical solution is applied to the skin it is absorbed and made available throughout the body for the effect on the susceptible parasites.
The Active Ingredients Work
- Imidacloprid works on the nervous system of fleas by blocking normal communication between nerves, leading to paralysis and death of the flea. It also disrupts the parasites’ feeding mechanisms, which can help clear up flea infestations.
- Moxidectin is a broad-spectrum antiparasitic which works by disrupting the nervous system of susceptible parasites, such as developing heartworm larvae (microfilaria) and intestinal worms, preventing development or survival.
- Imidacloprid and moxidectin work together by interfering with the central nervous system of invertebrate parasites, causing them to become paralyzed and die and preventing re-infestation.
Barrier offers month after month protection against heartworm disease and helps control susceptible parasites, such as fleas, to help keep your dog healthy and happy.
What Are the Side Effects of Barrier for Dogs?
When used as directed, Barrier medication for animals is a relatively well-tolerated product. But if the topical solution is accidentally ingested, it can have severe side effects, and veterinary care should be sought immediately.
Side Effects of Barrier for Dogs
- Depression or abnormal apathy
- Excessive salivation (drooling)
- Dilated pupils
- Incoordination (loss of coordination)
- Panting
- Generalized muscle tremors
Some dogs are more sensitive to avermectins, and can react more intensely to ingesting them – this may lead to coma and, in rare instances, death. Barrier is designed for topical use only – make sure your dog doesn’t lick the treated area or eat the product. If your dog has serious side effects or if he eats the medicine, call your veterinarian right away.
What Special Precautions Are There for Barrier for Dogs?
Dosage of Barrier for Dogs should be used as directed by the veterinarian to ensure its safe and effective use. It is a topical medicine and will NOT be taken orally. Taking the necessary precautions will minimise the chance of any adverse reaction and provide the most effective protection against parasites.
Some important precautions for dogs:
- May be applied to the skin only. Do not use Barrier orally.
- Do not allow treated dogs to lick the treated area for 30 minutes following treatment of either themselves or other dogs. Separate treated dogs at this time to avoid accidental ingestion.
- Serious reactions such as depression, excessive salivation, dilated pupils, incoordination, panting and generalized muscle tremors may occur after accidental ingestion.
- Some dogs are sensitive to avermectins, and if ingested, can become very sick, often going into coma or very rarely, death occurs, especially in Collies and Collie crosses that carry the MDR1 gene.
- Caution should be used when used in sick, debilitated or underweight dogs.
- Barrier dose has not been studied in breeding, pregnant or lactating dogs.
- Not for use in puppies 7 weeks of age or under, or dogs that weigh less than 3 pounds (1.4 kg).
- Before treating, test dogs to check for the presence of existing heartworm infection. Barrier is not a cure for existing heartworm infections, but it will help to prevent the disease.
- The veterinarian may recommend that a heartworm positive dog need adulticide treatment.
- Barrier Treatment has not been assessed in dogs with Class 4 heartworm disease or when used on the same day as an adulticide.
- While most dogs will see a significant drop in the number of microfilaria following treatment, in a few heartworm-positive dogs the number of microfilaria may increase or not change at all.
Active Ingredients in Barrier for Dogs
Barrier for Dogs contains two active ingredients that act synergistically to provide broad spectrum parasite protection:
- Imidacloprid – A chemical that is an insecticide, which disrupts the nervous system of adult fleas causing them paralysis and death.
- Moxidectin – Broad spectrum anti-parasitic; interferes with the nervous system of susceptible internal parasites, helping to prevent heartworm.
When used according to label instructions, imidacloprid and moxidectin work together to give effective monthly control of a broad spectrum of internal and external parasites.
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FAQs
Can I use Barrier dosage for Dogs without a prescription?
No. Barrier for Dogs is a prescription only product and should only be administered under the supervision of a licensed veterinarian.
When should Barrier for Dogs be used?
Barrier should be applied on the same date, once a month as nearly as practical, for continuous protection from parasites.
Is it OK to share one Barrier tube with two dogs?
No. Each tube is formulated to treat one dog for a single dose depending on the weight of the dog. Never divide or share a tube between pets.
If the dog’s fur is wet, can I apply Barrier?
Barrier medication should be used on dry skin, and dry hair. Never use it following a bath or on a wet coat.
If my dog licks where the applications are made, what happens?
Licking the product may result in unwanted reactions. Do not let pets, or other animals, lick on the treated area for 30 minutes after application.
Can puppies use Barrier for Dogs?
Yes, but only puppies 7 weeks of age or older and 3 pounds (1.4 kg) or more in weight should receive Barrier.
Does Barrier kill adult heartworms?
No. Barrier medication does not kill adult heartworms, but it will prevent heartworm disease and kill the microfilaria in the blood stream.
Should my dog be weighed every time I give it to her?
Yes. Barrier is delivered in weight specific applicator tubes, so it’s a great idea to weigh your dog periodically to make sure that you are using the right dose as it grows or if it changes weight.
Final Thoughts
Barrier Dosage for Dogs is a convenient monthly topical treatment that covers the several most common parasites that affect dogs. It can help control the risk of developing heartworm disease, flea infestation, mange and stomach worms with just one application every month when used consistently and as recommended by your veterinarian.
To get the most benefit, always use the correct dosage for the specific weight, apply correctly and do not skip monthly applications. Regular check-ups with your veterinarian, routine heartworm testing and year-round parasite control continue to be essential components of your dog’s health care regime. Please talk with your veterinarian before beginning or altering your pet’s treatment program if you have any questions regarding dosing, side effects, or if Barrier is right for your pet.
