Spinosad
Brands: Comfortis, Trifexis
Spinosad is an antiparasitic for dogs and cats, effective against fleas.
Used for
- flea infestation
How it is given
- Administration
- oral
- Frequency
- once monthly
- Duration
- typically as needed for flea control
- Storage
- Store at room temperature, away from moisture and heat.
- Pregnancy safety
- caution
Always confirm the exact dose with your veterinarian before giving any medicine.
Typical dose ranges
cat
- Standard
- 50 mg
dog
- Large dogs
- 270 mg
- Small dogs
- 90 mg
- Medium dogs
- 140 mg
Ranges are reference only. Your vet sets the dose for your pet's weight and condition.
Active ingredients
- Spinosad
Side effects
Common
- vomiting
- lethargy
Rare
- diarrhea
Severe
- allergic reactions
Do not use when
- young puppies under 14 weeks
- young kittens under 14 weeks
Interacts with
- Ivermectin
- Ketoconazole
Warnings
- Not for young animals
- Use with caution in seizure-prone pets
Spinosad questions
Is Spinosad safe for pregnant pets?
Use with caution and consult your veterinarian.
How quickly does Spinosad work?
Begins to kill fleas within 30 minutes.
Can I use Spinosad with other flea treatments?
Consult your veterinarian for advice on combining treatments.
Is a prescription required?
Yes, a veterinary prescription is required.
What should I do if I miss a dose?
Administer the missed dose as soon as you remember, then continue the schedule.
Full drug detail
Overview
Spinosad is a popular antiparasitic medication used to control flea infestations in pets, specifically dogs and cats. Known for its efficacy and safety profile, it offers a convenient solution for pet owners dealing with flea problems.
How It Works
Spinosad belongs to the spinosyns drug class and works by targeting the nervous system of fleas, leading to paralysis and death. It begins working within 30 minutes of administration, showing significant flea reduction within hours.
Uses & Indications
Spinosad is primarily indicated for the treatment and prevention of flea infestations in dogs and cats. It is effective against adult fleas and helps prevent future infestations when used regularly.
Dosage Guidelines
Dogs
- Small Dogs (5-10 lbs): 90 mg
- Medium Dogs (10.1-20 lbs): 140 mg
- Large Dogs (20.1-40 lbs): 270 mg
Cats
- Standard Dosage: 50 mg per cat
Administration
Spinosad is administered orally in the form of chewable tablets. It should be given with food for optimal absorption.
Side Effects
Common
- Vomiting
- Lethargy
Rare
- Diarrhea
Severe
- Allergic reactions requiring immediate veterinary attention
Precautions & Warnings
- Not recommended for use in puppies and kittens under 14 weeks of age.
- Use with caution in pets with a history of seizures.
Drug Interactions
- Ivermectin: May increase risk of adverse reactions.
- Ketoconazole: Use with caution.
Storage
Store at room temperature away from moisture and heat.
FAQ
- Is Spinosad safe for pregnant pets?
- Use with caution and consult your veterinarian.
- How quickly does Spinosad work?
- Begins to kill fleas within 30 minutes.
- Can I use Spinosad with other flea treatments?
- Consult your veterinarian for advice on combining treatments.
- Is a prescription required?
- Yes, a veterinary prescription is required.
- What should I do if I miss a dose?
- Administer the missed dose as soon as you remember, then continue the schedule.
Meta Title
Spinosad for Pets: Flea Control for Dogs & Cats
Meta Description
Learn about Spinosad, an effective antiparasitic for dogs and cats. Dosage, side effects, and precautions included.