Permethrin
Brands: Advantix, Vectra 3D
Permethrin is an antiparasitic used to protect dogs from fleas and ticks.
Used for
- flea control
- tick prevention
- mosquito repellence
How it is given
- Administration
- topical
- Frequency
- once monthly
- Duration
- as long as needed for parasite control
- Storage
- Store in a cool, dry place out of sunlight.
- Pregnancy safety
- caution
Always confirm the exact dose with your veterinarian before giving any medicine.
Typical dose ranges
cat
- Standard
- Not applicable
dog
- Large dogs
- Use products for large dogs
- Small dogs
- Use products formulated for small dogs
- Medium dogs
- Follow instructions for medium dogs
Ranges are reference only. Your vet sets the dose for your pet's weight and condition.
Active ingredients
- Permethrin
Side effects
Common
- skin irritation
- redness
Rare
- vomiting
Severe
- seizures
Do not use when
- cats
- known hypersensitivity
Interacts with
- other pyrethroid treatments
Warnings
- toxic to cats
- avoid in pregnant dogs unless advised by a vet
Permethrin questions
Can I use permethrin on my cat?
No, permethrin is toxic to cats and should never be used.
How often should I apply permethrin?
Follow the product's label, typically once a month.
What should I do if my dog has a reaction?
Seek immediate veterinary care.
Can permethrin be used with other flea treatments?
Consult your vet before combining treatments.
Is permethrin safe for puppies?
Consult a veterinarian for puppies under 8 weeks old.
Full drug detail
Overview
Permethrin is a synthetic pyrethroid used as an antiparasitic treatment for dogs. It effectively repels and kills fleas, ticks, and other external parasites. While highly effective in canines, it is toxic to cats and should never be used on them.
How It Works
Permethrin works by disrupting the nervous system of parasites, leading to paralysis and death. It affects sodium channels on nerve cells, preventing normal nerve signaling.
Uses & Indications
Permethrin is primarily used for:
- Flea control
- Tick prevention
- Mosquito repellence
Dosage Guidelines
Dogs
- Small Dogs (<15 lbs): Use products formulated specifically for small breeds.
- Medium Dogs (15-40 lbs): Follow package instructions for medium breeds.
- Large Dogs (>40 lbs): Use products tailored for large dogs.
- Cats: Permethrin is toxic to cats and should never be used.
Administration
Permethrin is typically administered topically as a spot-on treatment. Follow the product's instructions carefully.
Side Effects
Common
- Skin irritation
- Redness at the application site
Rare
- Vomiting
Severe
- Seizures (seek veterinary attention immediately)
Precautions & Warnings
- Do not use on cats; permethrin is highly toxic to them.
- Avoid contact with eyes and mouth.
- Use only as directed on the label.
Drug Interactions
- Avoid using with other pyrethroid-based treatments.
Storage
Store in a cool, dry place away from sunlight and out of reach of children.
FAQ
- Can I use permethrin on my cat? No, permethrin is toxic to cats and should never be used.
- How often should I apply permethrin? Follow the product's label, typically once a month.
- What should I do if my dog has a reaction? Seek immediate veterinary care.
- Can permethrin be used with other flea treatments? Consult your vet before combining treatments.
- Is permethrin safe for puppies? Consult a veterinarian for puppies under 8 weeks old.