Quick Facts

• Flea Management: Supports the prevention and control of flea infestations.
• Heartworm Prevention: Contributes to the prevention of heartworm disease.
• Mite Control: Supports the treatment and control of ear mite infestations.
• Dog-Specific: Supports the treatment of sarcoptic mange (scabies) and the control of the American dog tick.
• Cat-Specific: Contributes to the treatment of roundworm and intestinal hookworm infections.

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What Revolution treats: main uses and benefits

Revolution (selamectin) is a therapeutic option used in veterinary medicine for dogs and cats to address various parasitic conditions. It supports the prevention and control of flea infestations and helps to prevent heartworm disease, which is transmitted by mosquitoes. The compound also contributes to the management of ear mite infestations in both species.

In dogs, Revolution is used to support the treatment and control of sarcoptic mange (scabies) and aids in the control of the American dog tick. For cats, the product is intended to support the treatment and control of roundworm and intestinal hookworm infections. Revolution is recommended for use under the guidance of a veterinary professional.

This medication provides broad-spectrum support for parasite management, helping to manage symptoms associated with these common external and internal conditions.

Who can and cannot use Revolution?

The eligibility for Revolution (selamectin) is defined by regulatory bodies based on the animal species, age, and current health status. It is recommended for use in dogs extbf6 weeks of age and older and in cats extbf8 weeks of age and older.

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Eligibility Criteria

Classification	Eligible Population (FDA/Regulatory)	Restrictions and Prohibitions
Allowed Populations	Dogs 6 weeks of age; Cats 8 weeks of age.	Not for human use.
Age-Related	Safe for use in pregnant, lactating, and breeding dogs and cats.	Do not use in puppies under 6 weeks or kittens under 8 weeks of age.
Health Status	Must be used on generally healthy animals.	Do not use in animals that are sick, debilitated, or underweight.
Condition-Specific	Prior heartworm testing is recommended for all dogs.	Do not apply to broken skin.

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Official Regulatory Context

This medication is restricted to use by or on the order of a licensed veterinarian. For dogs, heartworm testing is a required precaution prior to administration to determine existing infection status, as the product is not effective against adult heartworms. Individuals with known human hypersensitivity to the drug should use the product with caution.

The official regulatory documentation for Selamectin (Revolution) defines a specific interaction profile that is notable for the general absence of known drug-drug interactions under approved conditions. No combinations are officially classified as contraindicated in the general population by regulatory authorities.

Documented Interaction Profile

Category	Regulatory Statement
Specific Interacting Medicines	None listed for co-administration; studies show safe use with frequently administered veterinary products, including vaccines, antibiotics, and steroids.
Timing-Based Rules	None. No mandatory time separation rules are stipulated for co-administration with other medicines or products.
Food or Supplements	None documented. Official labels do not specify interactions with food, alcohol, or herbal products that require restriction.
Interaction Classifications	Generally, no known clinically significant interactions. The product has been documented as safely used with commonly co-administered products.

Population-Specific Interaction Notes

The only official interaction-related caution pertains to animals with the ABCB1 (MDR1) gene mutation. This genetic factor increases susceptibility to the macrocyclic lactone class of drugs. This potential for sensitivity may be heightened by the concomitant administration of P-glycoprotein (P-gp) inhibiting drugs, such as certain antifungals or cardiovascular agents. The documented constraint is tied to this specific genetic population and not to the general patient population.

This structure confirms that regulatory documents define the product’s interaction profile primarily through its compatibility with other common veterinary treatments, with the singular constraint being the specific genetic susceptibility combined with P-gp inhibiting agents.

Selective Targeting of Invertebrate Chloride Channels

Selamectin's action begins with the selective binding and allosteric modulation of Glutamate-gated chloride channels ( GluCl), a biological target predominantly expressed on the nerve and muscle cells of parasitic invertebrates. This interaction causes the GluCl channels to open persistently. The sustained channel opening subsequently drives a massive, continuous influx of negative chloride ions ( Cl^-) into the parasitic cells.

Mechanistic Cascade to Flaccid Paralysis

This rapid ion movement generates sustained hyperpolarization of the cell membranes, electrically inhibiting the nerve and muscle tissues. This cellular change effectively prevents the electrical signal transmission necessary for neuromuscular control, strongly inhibiting the muscular activity required for the parasite's movement and feeding. This mechanistic cascade results in an irreversible state of flaccid paralysis, a core physiological consequence that leads to the organism's eventual death and clearance. The safety margin in mammalian hosts is maintained by the P-glycoprotein efflux pump limiting central nervous system accumulation.

The usage of Revolution (Selamectin) involves a precise topical administration protocol. The medicine is a topical solution, formulated in pre-measured, single-dose applicators for application directly to the skin.

The primary frequency for continuous protection is monthly intervals, meaning a single application is required every 30 days. The dosing requires that the proper tube size be selected to administer at least 6 mg of Selamectin per kg of body weight. The entire contents of the selected applicator must be expelled onto the skin in one spot.

For administration, the hair must be parted at the base of the neck, in front of the shoulder blades, to expose dry, unbroken skin. The product should not be massaged into the skin, nor should it be applied when the coat is wet. Administration is limited to puppies 6 weeks of age and older and kittens 8 weeks of age and older. If the standard monthly timing is exceeded, immediate application is indicated to restore the regimen, with the next dose due one month later. Bathing 2 or more hours after treatment is permitted and does not affect the product's systemic uptake.

Research Evidence / Overview of Studies for Revolution (Selamectin)

Evidence for Use in Flea Infestations and Heartworm Prevention

Research explored the use of Selamectin in research contexts involving conditions characterized by parasite populations, specifically focusing on research scenarios addressing heartworm infection status and flea population status. The evidence relies on controlled field and laboratory studies involving naturally infested dogs and cats.

For heartworm infection status, studies monitored the absence of microfilariae and adult heartworm antigens following monthly administration, typically over six-month intervals. Findings describe the patterns observed, which contribute to understanding infection status. Research is limited regarding the consequences of delayed applications or data addressing newly emerging resistant strains.

Regarding flea population status, research examined the assessment of parasites associated with physical discomfort. Studies measured flea counts and associated signs, like itching, over 30-day dosing periods. Findings describe patterns observed, which included measurements of parasite population counts. Comparative evidence is lacking regarding differences in the rate of measured parasite removal versus some alternative products.

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Evidence for Treatment and Control of Mites and Nematodes

Research also examined use for research scenarios involving acute episodes, such as ear mite infestations in dogs and cats. Studies focused on outcomes related to discomfort by defining and measuring mite population status in the ear canal after application, typically over 14 to 30 days. Studies provided limited insight into the relationship between the compound application and the subsequent need for ancillary clinical procedures for remaining debris.

For intestinal roundworm and hookworm infections in cats, research explored parasite burden via outcomes measured by fecal egg counts. Findings describe patterns observed when the medicine was used as a single dose or two doses one month apart. Limited information for long-term outcomes, specifically reinfection rates, remains unstudied.

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Long-term Studies and Evidence Gaps

Research primarily focuses on short-term symptom changes over the immediate dosing interval (typically 30 days). Data show patterns related to outcomes measured over these defined time intervals, but information for long-term outcomes is not fully established beyond the standard study periods for most indications.

The results apply only to the populations studied. Data for specific groups, such as those with significant pre-existing comorbidities or advanced ages, remain insufficient in the published summaries. Research does not determine whether an individual will respond similarly, as the findings describe group patterns, not personal outcomes. Follow-up durations were limited in many controlled field trials.

Common questions about Revolution (FAQ)

Q: Does Revolution affect driving or operating machinery?

According to the official product information, Revolution is not expected to affect your ability to drive or operate machines. The official product information indicates that, based on clinical studies, the medicine is generally not expected to cause the kind of impairment that affects these activities.

Q: What happens if I miss a dose of Revolution?

Regulatory documents typically indicate that if a dose is missed, it can be taken as soon as the user remembers. However, if it is almost time for the next scheduled dose, the missed one should be skipped entirely. The official information advises against taking a double dose to compensate for the missed one.

Q: Can I take Revolution with food?

Official information indicates that Revolution can be taken with or without food. This means that its absorption or effectiveness is not significantly dependent on whether you have recently eaten.

Q: Is Revolution safe to take during pregnancy or while breastfeeding?

Official information indicates that Revolution is not recommended for use during pregnancy. It is also not recommended while breastfeeding, according to regulatory guidelines. These restrictions are stated in the official product labeling.

Q: How long will I need to take Revolution?

According to the official product information, the length of time for taking Revolution is determined by the treated condition and the prescribing healthcare provider. The treatment duration can vary depending on whether the medicine is used for a short-term issue or a long-term chronic condition.

How to Store and Dispose of Revolution?

Revolution (selamectin) must be stored under specific conditions to maintain stability and prevent hazards. Store the medication at or below 30 C (86 F), and protect it from sunlight. Due to the presence of flammable ingredients, it is crucial to keep it away from heat, sparks, open flames, and all sources of ignition; no smoking should be permitted in the storage area. Always keep the product out of the reach of children and pets, preferably stored locked up.

For disposal, empty applicators may be placed in ordinary household trash. Unused product and containers must be disposed of in accordance with local, regional, and national regulations. It is mandatory to avoid release to the environment, as the active ingredient is very toxic to aquatic life.