How to give ivermectin to dogs
Ivermectin is a broad-spectrum antiparasitic drug commonly used to treat parasitic infections such as mites and heartworms in dogs. However, the use of ivermectin needs to strictly follow veterinary instructions, otherwise it may have serious consequences for the dog's health. Here are detailed guidelines for using Ivermectin in dogs.
1. Effects and indications of ivermectin

Ivermectin is mainly used to treat the following parasitic infections:
| Parasite type | Indications |
|---|---|
| mites | Scabies mites, ear mites, demodex mites |
| Nematodes | Heartworms, hookworms, roundworms |
| Others | Lice, fleas (some effective) |
2. Dosage and usage of ivermectin
The dosage of ivermectin needs to be determined based on the dog’s weight and health status. The following is a common dosage reference:
| dog weight | Ivermectin dosage (mcg/kg) | Dosing frequency |
|---|---|---|
| Below 5kg | 0.1-0.2mg/kg | Once a week or as recommended by your veterinarian |
| 5-20kg | 0.1-0.2mg/kg | Once a week or as recommended by your veterinarian |
| More than 20kg | 0.1-0.2mg/kg | Once a week or as recommended by your veterinarian |
Note:Ivermectin may be toxic to some breeds (such as Collies, Shepherds, etc.) and should be used with caution.
3. How to administer ivermectin
Ivermectin can be given to dogs in the following ways:
| Dosing method | Operation steps | Things to note |
|---|---|---|
| Oral | Mixing tablets or liquids into food | Make sure your dog swallows it completely |
| subcutaneous injection | Operated by a veterinarian or professional | Avoid self-injections |
| External use | Apply to the affected area of skin (some dosage forms) | Avoid licking by dogs |
4. Precautions when using ivermectin
1.Breed sensitivity:Some breeds, such as Collies, are sensitive to ivermectin and require lower doses or avoidance.
2.Monitoring of side effects:After use, the dog needs to be observed for side effects such as vomiting, diarrhea, and lethargy.
3.Veterinary Guidance:Be sure to use it under the guidance of a veterinarian and do not adjust the dosage yourself.
4.Drug interactions:Avoid concurrent use with other medications, especially central nervous system medications.
5. Frequently Asked Questions about Ivermectin
Q: Can Ivermectin treat all parasites in dogs?
A: Ivermectin is effective against mites and nematodes, but is ineffective against some parasites (such as tapeworms).
Q: Can ivermectin prevent heartworms?
A: Yes, ivermectin can be used for heartworm prevention, but it needs to be given regularly.
Q: What should I do if my dog accidentally eats too much ivermectin?
A: Contact your veterinarian immediately. Gastric lavage or activated charcoal detoxification may be required.
6. Summary
Ivermectin is an effective antiparasitic drug, but it must be used in strict compliance with veterinary guidance, especially regarding dosage and species sensitivity. Correct use can help dogs get rid of parasites, but incorrect use can lead to serious consequences. If you have any questions, please consult a professional veterinarian promptly.
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