Revolution Plus (generic: selamectin/sarolaner) is a prescription, once‑monthly topical for cats that protects against common parasites. In plain terms, it’s broad‑spectrum parasite prevention that kills fleas and ticks and prevents heartworm.
Top uses: 1) flea control/prevention, 2) tick protection, 3) heartworm prevention. It also treats ear mites and some intestinal worms (roundworms, hookworms). Species: cats only. Rx status: prescription (vet authorization required). Your veterinarian can discuss if this product is the right fit for an individual cat, especially if there’s any history of neurologic issues.
Front desk script: Revolution Plus is a monthly, prescription topical for cats that protects against fleas and ticks and helps prevent heartworm. It also treats ear mites and some intestinal worms. Because it’s Rx‑only, our veterinarian will confirm it’s appropriate for your cat and other medications. If you ever see concerning signs after use—like tremors, trouble walking, or seizures—seek urgent veterinary care and call us right away.
Owner FAQs (front-desk quick answers):
Q: What does Revolution Plus do and how often is it used? A: It’s a prescription monthly topical for cats that prevents heartworm disease and protects against fleas, ticks (black‑legged, Gulf Coast, American dog, and lone star), ear mites, roundworms, and hookworms. It’s for cats/kittens 8 weeks and older and at least 2.8 lb; your veterinarian will confirm it’s appropriate for your cat. [Sources]
Q: How fast does it start working? A: It starts killing fleas quickly (within about 12 hours after the first dose and within 6 hours after re‑exposure in studies) and maintains month‑long control. Tick kill begins within 12–24 hours with high effectiveness reached over the first 1–3 days, depending on species. Your veterinarian can discuss expectations for your cat’s situation. [Sources]
Q: Is it safe—what side effects should I watch for? A: Most cats do well. Reported effects include temporary decreased appetite, drowsiness, vomiting/diarrhea, or mild skin/hair changes at the application site. Because it contains an isoxazoline (sarolaner), rare neurologic effects like tremors, stumbling, or seizures have been reported in some cats. If you see tremors, trouble walking, or your cat seems very unwell, contact us or your veterinarian the same day. If your cat is actively seizing or collapses, seek emergency care immediately. [Sources]
Q: Any handling or household precautions after I apply it? A: Apply to dry skin; do not apply to a wet coat. Avoid touching the application site—and prevent children or other pets from contacting/licking it—for at least 4 hours, and until it is dry. Once dry, normal contact is okay. [Sources]
Q: What if my cat licks the spot or I’m late on a dose? A: Keep pets separated until the spot is dry to prevent licking. If your cat licks it, mild drooling can happen; call us if vomiting, behavior changes, or any neurologic signs occur. For timing questions or a late/missed dose, please call so our veterinary team can advise on next steps for your cat. [Sources]
Front desk script: Revolution Plus is a monthly prescription topical for cats that covers fleas, several tick species, ear mites, certain intestinal worms, and helps prevent heartworm disease. After you apply it to dry skin, please keep kids and other pets from touching or licking the spot for at least 4 hours and until it’s dry. Most cats do great, but if you see tremors, trouble walking, or your cat seems very unwell, contact us right away—if there’s a seizure or collapse, go to the nearest emergency clinic now. For questions about timing a dose, missed doses, or whether it’s the best choice for your cat, I’ll have our veterinarian advise you.
What owners most often report after applying Revolution Plus: a temporary patch of stiff or clumped hair or light powdery residue at the spot where it was applied; mild skin redness or a small bald patch at the site; a sleepy/quiet day, slightly reduced appetite, or an isolated vomit or soft stool. These effects were seen at low rates in studies and post‑approval reports and are typically short‑lived. Application‑site residue/hair changes are expected and usually resolve on their own.
Call the clinic the same day if you hear about repeated vomiting or diarrhea, poor appetite that is not improving, the application site becoming very red, scabby, or painful, or new behavior changes such as hiding, agitation, or unusual vocalizing. Because Revolution Plus contains an isoxazoline (sarolaner), owners should be told to seek emergency care immediately for any neurologic signs (shaking/tremors, stumbling/ataxia, collapse, or a seizure) or for trouble breathing. Your veterinarian can discuss whether these signs are related to the medication and the safest next steps or alternatives.
Front desk script: Thanks for calling—some mild, short‑term effects after Revolution Plus can include a little hair clumping or residue at the spot, or a tired day with a slightly lower appetite. If you’re seeing repeated vomiting/diarrhea, the skin at the spot looks very red or raw, or your cat is hiding or acting unusually, we should have our veterinarian evaluate your cat today. If you notice shaking, stumbling, a seizure, or trouble breathing, please go to the nearest emergency clinic now. I’ll alert our veterinarian and we can guide you from there.
Form/what to tell clients: Revolution Plus is a cat‑only, ready‑to‑use topical in single-use tubes. Apply the full tube to the skin (not the fur) at the base of the neck between the shoulder blades in one spot. Do not rub it in; do not apply to wet or broken skin; avoid getting it on your fingers; wash hands after. Keep people from touching the application site for 4 hours, and keep other pets from grooming the area until it’s dry.
Troubleshooting/how to get it on: Use a quiet room, offer a treat, and have a helper hold or use a towel “purrito” if the cat is wiggly. Part the hair so you can see skin before squeezing the tube. If the product ran onto fur, was wiped off before drying, or you’re unsure the whole tube reached the skin, do not re‑apply—ask the veterinarian for next steps. This medication is topical only; it is not a pill and should not be mixed with food.
If the cat licks it or vomits: Accidental taste can cause drooling or occasional vomiting. Prevent licking until the site is dry. If vomiting persists or the cat seems unwell, contact the clinic the same day. Escalate immediately if you see neurologic signs such as tremors, stumbling/ataxia, or seizures; these are urgent and need veterinary care right away. Your veterinarian can also discuss alternatives if topical application is consistently difficult.
Front desk script: “This one isn’t a pill—it’s a small tube you squeeze onto the SKIN at the back of the neck. Use the whole tube in one spot, don’t rub it in, and keep other pets and children away from that area until it’s dry; people shouldn’t touch the spot for about 4 hours. If any gets in your cat’s mouth and they drool or vomit, please call us—if you ever see tremors, wobbliness, or a seizure after using it, go to an emergency clinic right away. If the dose spilled or you’re unsure it reached the skin, don’t put on another—call us and we’ll advise. If topicals are tough to give, our veterinarian can discuss other options.”
Revolution Plus is a prescription, once‑monthly topical for cats only. All refills must be approved by a veterinarian under a valid veterinarian‑client‑patient relationship (VCPR). Our standard turnaround for refill review is 1–2 business days; same‑day may be possible if the record is current and product is in stock. The veterinarian may require a recheck exam before authorizing more refills if the cat is overdue for its annual exam, there have been health changes, or any side effects were reported; your veterinarian can discuss if any testing is needed before continuing prevention.
When taking a refill request, collect: cat’s name and DOB, owner name and best contact, approximate current weight, date of last dose, any missed doses, any side effects (especially neurologic signs), new medications/illnesses, pregnancy/lactation status, quantity requested, and pickup vs. online pharmacy preference. If the caller reports tremors, unsteady walking, seizures, or the cat is very sick after a prior dose, place the caller on hold and alert a nurse/veterinarian immediately; if after hours, direct to the nearest emergency hospital.
Online pharmacy process: We can e‑prescribe or approve a request to a U.S. state‑licensed pharmacy that requires a veterinarian’s prescription. Allow 1–2 business days for approval, plus the pharmacy’s shipping time. We cannot approve if there is no current VCPR or if the cat is overdue for required exams; schedule as needed. Remind clients that legitimate pharmacies must verify a veterinary prescription; your veterinarian can advise on reputable options.
Front desk script: I can help with a Revolution Plus refill for your cat. May I confirm your cat’s name and DOB, your best contact number, the date of the last dose, and whether you noticed any side effects? Our veterinarian will review the request within 1–2 business days; if an exam is due, we’ll help you schedule before approving more refills. If you prefer an online pharmacy, we can send the prescription to a U.S. state‑licensed site that requires a vet Rx. If your cat has had tremors, wobbliness, or a seizure after a dose, please tell me now so I can get a nurse or veterinarian on the line right away.
Escalate to a veterinarian/technician immediately if, after applying Revolution Plus, the cat shows any neurologic signs: shaking or tremors, wobbliness/stumbling, sudden collapse, very wide pupils, or a seizure. Isoxazoline-containing products (Revolution Plus includes sarolaner) have been associated with these neurologic reactions in some cats, even without a prior seizure history. Trouble breathing, profound weakness, or unresponsiveness are emergencies.
If any product was chewed, a tube was punctured, another pet licked the wet application site, or the medication got into the eyes, alert a vet/tech now. Oral exposure can cause drooling, vomiting, soft stool, lethargy, or occasional tremor; eye exposure can cause redness or irritation. Severe or persistent vomiting, repeated drooling, or any tremor warrants urgent evaluation.
Stop the conversation and get medical help right away for signs of a severe allergic reaction (facial swelling, hives, difficulty breathing). Also escalate if a wrong patient or situation is involved (kittens under 8 weeks; breeding/pregnant/nursing cats; known neurologic disorder with new neurologic signs; multiple tubes or the wrong product/size used; severe skin reaction at the application site). Your veterinarian can discuss risks, next steps, and whether additional monitoring is needed.
Front desk script: Because you’re seeing those signs, I’m getting a veterinarian or technician on the line right now. If your cat is seizing, collapsed, or having trouble breathing, this is an emergency—please head to the nearest ER immediately while I notify our medical team. If any product was ingested or got into the eyes, please keep your cat separated from other pets and avoid handling the site; our veterinarian will advise next steps. We’ll stay with you and coordinate care right away.
Revolution Plus (selamectin + sarolaner) is commonly used at the same time as other veterinary medications. In clinical field studies it was given alongside vaccines, tapeworm dewormers, antibiotics, sedatives/anesthetics/analgesics, corticosteroids, and NSAIDs without adverse reactions linked to the combination. Because sarolaner is an isoxazoline, note the FDA class advisory for rare neurologic effects (tremors, ataxia, seizures). Your veterinarian can discuss risks and benefits for cats with a history of neurologic disease.
Flag and message the veterinarian if an owner mentions: 1) any other flea/tick product (spot-on, spray, collar); do not “stack” preventives—permethrin-containing dog products are dangerous to cats; 2) seizure history or use of seizure medications; 3) another heartworm/macrocyclic lactone preventive (risk of duplicate therapy); or 4) medicines sometimes noted in references as potential P‑gp/CYP inhibitors (examples owners might name: azole antifungals, erythromycin, diltiazem, cyclosporine, spironolactone)—have the DVM review before dispensing. Commonly co‑prescribed items you may hear include: tapeworm dewormers (praziquantel‑containing products), antibiotics, pain control or sedation for procedures, and short steroid courses—these were allowed in field studies, but still document everything for the record.
OTC and household items owners often give or use include diphenhydramine (Benadryl), famotidine (Pepcid), fish oil/probiotics, and flea shampoos/sprays. These are not known to require automatic changes to Revolution Plus, but staff should record them and alert the veterinarian if the owner is using any additional flea/tick products or reports new neurologic signs. If an owner reports tremors, wobbliness, or seizures after application, instruct them to seek emergency care immediately and notify the veterinarian.
Front desk script: Thanks for letting us know about all the meds and products you’re using. Revolution Plus is usually fine with most common vet meds, but we do want the doctor to review if you’re using any other flea or tick products, if your cat has ever had seizures, or if you’re also giving a heartworm preventive.
Please avoid adding any OTC flea collars or spot‑ons, especially dog products with permethrin—those can be dangerous for cats. If you notice wobbliness, tremors, or any seizure‑like activity after applying Revolution Plus, please go to the nearest emergency vet now and call us on the way.
I’ll note everything in your chart and have our veterinarian review and advise you.
Store Revolution Plus single‑dose tubes at or below 86°F (30°C). The contents are flammable—keep all boxes and tubes away from heat, sparks, and open flames during storage, dispensing, and owner pickup. Keep out of reach of children and pets at all times.
Each tube is single‑use: once opened, apply immediately and do not save any leftover product. After application, advise owners to avoid contact with the application site for 4 hours and to wash hands after handling. If anyone gets the product on their skin or in their eyes, wash the area with plenty of water. Your veterinarian can discuss additional safety steps for homes with small children or multiple pets.
Disposal: Empty tubes may go in regular household trash. For unused or expired medication, use a drug take‑back program when possible; if none is available, follow FDA household‑trash guidance (mix with an unpalatable substance like used coffee grounds or cat litter, seal in a bag/container, then place in the trash). Do not pour unused product down drains. If a person or pet swallows the product or a cat develops neurologic signs such as tremors or seizures after application, treat this as urgent and contact a veterinarian or poison control immediately.
Revolution Plus is a monthly topical parasite preventive for cats. There is no routine bloodwork required for this medication. Plan an annual wellness exam for prescription renewal and to confirm the cat’s current weight, since product size is weight‑based. For kittens or cats still growing, schedule quick weight checks before refills. Your veterinarian can advise if any extra monitoring is needed based on the cat’s history (for example, prior neurologic issues).
Testing and rechecks: Schedule fecal parasite testing 2 times per year for healthy adult cats, with more frequent tests in the first year of life; timing can be adjusted by the veterinarian based on lifestyle and risk. Heartworm testing is not required before starting feline prevention, but the veterinarian may request testing in higher‑risk or symptomatic cats. Set monthly reminders for application and synchronize refills to keep doses on time year‑round.
After each application, ask owners to watch for application‑site irritation, vomiting, drooling, unusual sleepiness, or neurologic changes. Because sarolaner is an isoxazoline, rare neurologic effects (tremors, trouble walking, seizures) have been reported in cats; if these occur, escalate immediately so a veterinarian can assess next steps.
Front desk script: This is a monthly topical prevention—no routine lab work is needed. We’ll keep you on our reminder list and plan your cat’s yearly exam to renew the prescription and confirm weight. We also recommend scheduling stool checks about twice a year; the veterinarian can adjust that based on your cat’s lifestyle. If you ever see shaking, trouble walking, seizures, or severe lethargy after an application, seek emergency care and call us right away so our veterinarian can advise you.
Use case: quick, clear, and safe. Revolution Plus is a monthly, prescription topical for cats that helps protect against fleas, certain ticks, ear mites, roundworms, hookworms, and heartworm disease. Most cats tolerate it well; reported side effects in studies include temporary sleepiness/lethargy and decreased appetite. Because it contains sarolaner (an isoxazoline), use with caution is advised in cats with a history of neurologic issues—your veterinarian can discuss whether it’s appropriate and which product strength to use for an individual cat.
Escalation: if an owner reports tremors, stumbling/ataxia, seizures, severe facial swelling, trouble breathing, or collapse after application, advise immediate emergency care and notify a veterinarian right away. For mild symptoms like temporary drowsiness or decreased appetite, avoid medical advice; offer to schedule the soonest appointment or message the care team for guidance. Do not tell clients to start, stop, split, or reapply doses—any changes must be directed by a veterinarian. If product contacts human eyes/skin, advise rinsing and seeking medical advice per label.
Phrases to avoid: “It’s safe for all cats,” “Just skip or double a dose,” “Go ahead and start/stop it,” or any dosing instructions. Preferred phrasing: “It’s a prescription product; your veterinarian will review your cat’s history and medications to confirm it’s the right choice and provide usage directions.”
Front desk script: “Thank you for calling [Clinic Name], this is [Name]. Revolution Plus is a monthly, prescription topical that helps protect cats from fleas, certain ticks, ear mites, roundworms, hookworms, and heartworm disease. Because every cat is different—and this product contains an ingredient that needs caution in cats with a history of neurologic issues—our veterinarian will confirm if it’s right for your cat and provide instructions. If your cat is showing tremors, stumbling, seizures, or trouble breathing after a dose, please seek emergency care now and I’ll alert our team; otherwise I can request a refill or set up the next available appointment.”