Description

Indications

Spinosad chewable tablets are a veterinary medicine prescribed to treat and prevent flea infestations in dogs, puppies, cats, and kittens. Spinosad contains the insecticides spinosyn A and spinosyn D. These spinosyn molecules work by activating nicotinic acetylcholine receptors in fleas, leading to involuntary muscle contractions, paralysis, and ultimately death of the insects.

Uses and Dosage

Spinosad is given orally once a month at a recommended minimum dosage of 13.5 mg/lb (30 mg/kg).

Do not use the dosing schedule below for cats, as it can result in underdosage.

Dogs over 120 lbs should receive the appropriate combination of tablets.

Administer spinosad with food for maximum effectiveness.

Spinosad is a chewable tablet readily consumed by dogs when offered by the owner just before feeding. Alternatively, it can be offered in food or administered like other tablet medications. Spinosad should be given at monthly intervals.

If vomiting occurs within an hour of administration, redose with another full dose. If a dose is missed, administer spinosad with food and resume the monthly dosing schedule.

Treatment with spinosad can begin at any time of the year, ideally starting one month before fleas become active and continuing monthly through the end of flea season. In areas where fleas are common year-round, monthly treatment with spinosad should continue year-round without interruption.

To minimize the likelihood of flea reinfestation, you should treat all animals within the household with an approved flea protection product.

Side Effects

Some side effects may occur that usually do not need medical attention:

vomiting

Inform your healthcare provider immediately if your pet experiences any rare but serious side effects:

fatigue
lack of appetite
weight loss
diarrhea
cough
increased thirst
itching
lack of coordination
seizures

Caution

Spinosad is for use in dogs and puppies 14 weeks of age and older.
The safety of spinosad has not been established in breeding, pregnant, or lactating animals.
Be sure to inform your veterinarian about any other medications your pet is taking. Sometimes, veterinarians may prescribe two different medications even if a drug interaction is possible. In such cases, your veterinarian may adjust the dose and/or monitor your pet more closely. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.
Allergic reactions to medications can occur. Inform your veterinarian if your pet has any known drug sensitivities or allergies. If your pet shows symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic.

Form and Strength

Comfortis Chewable is available in the following forms and strengths:

Comfortis Chewable chewable tablet:
- 1620 mg

FAQ

Is Comfortis Chewable safe for older dogs?

While Comfortis is safe for use in older pets, it is always best to discuss all medications with your pet’s veterinarian.

Does Comfortis Chewable kill flea eggs?

Comfortis does not directly kill flea eggs. However, it kills fleas before they can lay any new eggs.

Resources

Additional information

Generic name:	Spinosad
Formulation:	Chewable Tablet
Strength(s):	1620mg
Quantities Available:	6

Comfortis Chewable 27.10-54kg (Spinosad)