Revolution (Selamectin) Dosage Calculator for Dogs

Revolution (Selamectin) for Dogs – Multi-Parasite Monthly Topical

Revolution (active ingredient selamectin) is a topical monthly parasiticide covering heartworm prevention, fleas, ear mites, sarcoptic mange, and one tick species. Revolution Plus adds sarolaner for comprehensive tick coverage.

Tube Sizing Reference

Minimum dose: 6 mg/kg. Tubes provide 6-12 mg/kg in band – all safe + effective.

Coverage Spectrum

⭐ MDR1 Safety – Selamectin is SAFE

Selamectin is SAFE for MDR1-mutant dogs at therapeutic dose:

• Collies
• Australian Shepherds
• Shetland Sheepdogs (Shelties)
• Border Collies
• German Shepherd Dogs
• Old English Sheepdogs
• Long-haired Whippets
• Silken Windhounds
• English Shepherds

Unlike high-dose oral ivermectin (used for demodicosis), selamectin at labeled flea/heartworm dose stays below MDR1 toxicity threshold. Multiple safety studies in MDR1-mutant Collies confirm safety at 5-10x label dose.

Selamectin is the macrocyclic lactone of choice for MDR1-risk breeds (alongside moxidectin/Advantage Multi).

Revolution vs Revolution Plus

Application Technique

1. Verify weight + tube color match
2. Dog should be DRY – no bath 2 hours before or after
3. Part hair between shoulder blades (above neck, dog can’t lick)
4. Apply ENTIRE TUBE to skin
5. Hold tip in contact with skin, squeeze firmly
6. Do NOT rub in – alcohol evaporates
7. Wash hands after
8. Keep separate from other pets 2 hours
9. No bathing 2+ hours (ideally 24 hours)
10. Mark calendar for next dose 30 days later

Heartworm Prevention Protocol

1. TEST FIRST – antigen test before starting in dogs over 6 months
2. Apply MONTHLY consistently
3. Year-round in endemic areas
4. Annual retest at vet
5. Late dose – apply ASAP, restart monthly
6. Lapse over 3 months = antigen test before resuming
7. NEVER start in heartworm-positive dog without vet supervision

Side Effects

Common (mild)

• Transient hair loss at site (~1-3%)
• Mild skin irritation
• Wet/sticky appearance temporarily

Uncommon

• Vomiting/diarrhea if ingested
• Hypersalivation if licked
• Brief lethargy

Rare

• Severe skin reaction
• Anorexia
• Tremors
• Tachypnea

Age + Pregnancy

• Labeled for puppies 6 weeks+
• Pregnant/lactating – SAFE per label
• Under 6 weeks – vet evaluation; manual flea removal + environmental control; Capstar from 4 weeks/2 lb for fleas

Questions This Calculator Answers

• “Which Revolution tube for my dog?” – Color-coded by weight
• “Safe for Collies?” – YES – MDR1-safe at therapeutic dose
• “How often?” – Monthly (every 30 days)
• “What does it treat?” – Heartworm, fleas, ear mites, sarcoptic mange
• “Revolution vs Plus?” – Plus adds sarolaner for tick coverage
• “Puppies?” – From 6 weeks
• “Bath after?” – Wait 2+ hours (ideally 24)
• “Intestinal worms?” – NOT covered; use Interceptor Plus
• “Side effects?” – Mild irritation, transient hair loss
• “Ear mites?” – Single dose usually effective

Conclusion

Revolution (selamectin) is a comprehensive topical monthly parasiticide covering heartworm + fleas + ear mites + sarcoptic mange + American Dog Tick. MDR1-safe at therapeutic dose – first choice for Collies and herding breeds. Revolution Plus adds sarolaner for full tick coverage (with isoxazoline neurologic class warning). Color-coded tubes ensure correct dosing. Apply monthly, no bath 2+ hours after, test for heartworm before starting.

Frequently Asked Questions

Which Revolution tube color is right for my dog?

MATCH WEIGHT TO TUBE COLOR. Tube color-coded system: 1) MAUVE (15 mg selamectin) – puppies up to 2.5 kg (5.5 lb); 2) PURPLE (30 mg) – 2.6-5.0 kg (5.5-11 lb); 3) BROWN (60 mg) – 5.1-10.0 kg (11-22 lb); 4) RED (120 mg) – 10.1-20.0 kg (22-44 lb); 5) TEAL (240 mg) – 20.1-40.0 kg (44-88 lb); 6) Over 40 kg (88 lb) – COMBINE smaller tubes to total at least 6 mg/kg. EXAMPLES: 1) 2 kg Chihuahua = MAUVE; 2) 4 kg toy breed = PURPLE; 3) 8 kg Beagle = BROWN; 4) 12 kg Cocker Spaniel = RED; 5) 18 kg Border Collie = RED; 6) 25 kg Lab = TEAL; 7) 35 kg Boxer = TEAL; 8) 45 kg Lab = TEAL + BROWN combination (240 + 60 = 300 mg for 45 kg = 6.7 mg/kg). HOW TO CHOOSE between bands: 1) NEVER use SMALLER tube than label indicates – underdosing risks treatment failure; 2) Going UP to next tube size in band is fine (within manufacturer’s dosing range 6-12 mg/kg); 3) If exactly at band cutoff (e.g., 5.0 kg), use larger tube (BROWN); 4) Growing puppies – reassess each month; 5) Weight gain – move to larger tube. COMBINING TUBES for large dogs: 1) Total selamectin must be at least 6 mg/kg; 2) Apply TWO tubes if needed (different spots OR same spot); 3) EXAMPLE 50 kg dog: TEAL (240 mg) + PURPLE (30 mg) = 270 mg = 5.4 mg/kg – INADEQUATE – need BROWN+TEAL = 300 mg = 6 mg/kg; 4) Better combinations: TEAL + BROWN = 300 mg covers up to 50 kg; TEAL + TEAL = 480 mg covers up to 80 kg; 5) Apply tubes simultaneously, different spots (between shoulder blades + base of skull). FORMULATIONS: 1) Revolution (selamectin only) – all colors above; 2) Revolution PLUS (selamectin + sarolaner) – similar color scheme: a) Yellow puppies; b) Orange small; c) Lime small-medium; d) Olive medium-large; e) Forest green large; f) Aqua extra large; 3) Choose Plus if tick coverage needed; choose plain Revolution if not. STORAGE + EXPIRATION: 1) Room temperature; 2) Keep in original packaging until use; 3) Check expiration date; 4) Damaged tubes – discard; 5) Spilled medication – dispose properly. PURCHASE: 1) Veterinary prescription required; 2) Online pharmacies (Chewy, 1800PetMeds, etc.) with vet authorization; 3) Vet office direct; 4) Buy 6-month or 12-month supply for cost savings + ease; 5) Manufacturer rebates seasonal. CHECK BEFORE APPLICATION: 1) Verify CORRECT color for current weight; 2) Reassess if dog gained/lost weight significantly; 3) PUPPY GROWING – check monthly; 4) Senior dog losing weight – confirm still at correct band; 5) Pregnancy weight change – reassess. SAFETY MARGIN: Revolution has wide safety margin (tested 5-10x dose without adverse effects). Going slightly over correct tube band is safer than underdosing. Selamectin MDR1-SAFE at all therapeutic doses. EFFECTIVENESS depends on CORRECT tube size + monthly consistency + proper application technique.

Is Revolution safe for Collies and herding breeds?

YES – SELAMECTIN IS SAFE for MDR1-mutant dogs at therapeutic dose. This is a major advantage over high-dose oral ivermectin. WHAT IS MDR1: 1) Multi-Drug Resistance gene 1 (also called ABCB1); 2) Encodes P-glycoprotein – drug efflux pump at blood-brain barrier; 3) MDR1 MUTATION (deletion) reduces or eliminates P-glycoprotein function; 4) Allows certain drugs to ACCUMULATE in brain tissue; 5) Causes neurotoxicity at otherwise safe doses; 6) HEREDITARY (genetic); 7) Tested via cheek swab (Washington State University, Embark, others). MDR1-AT-RISK BREEDS (carrying mutation): 1) ROUGH COLLIE – ~70% carry mutation; 2) SMOOTH COLLIE – similar; 3) AUSTRALIAN SHEPHERD – ~50%; 4) SHETLAND SHEEPDOG (Sheltie) – 15%; 5) BORDER COLLIE – 1-2%; 6) ENGLISH SHEPHERD – 25%; 7) OLD ENGLISH SHEEPDOG – 5-10%; 8) GERMAN SHEPHERD DOG – 6-10%; 9) LONG-HAIRED WHIPPET – 50%; 10) SILKEN WINDHOUND – 25%; 11) MCNAB – documented; 12) MIXED BREED with herding ancestry – variable. MDR1 GENOTYPES: 1) NORMAL/NORMAL (-/-) – no risk; 2) HETEROZYGOUS (+/-) – some risk at high doses; 3) HOMOZYGOUS MUTANT (+/+) – HIGHEST risk; 4) Test results from cheek swab. DRUGS DANGEROUS to MDR1-mutants: 1) IVERMECTIN ORAL high-dose (>0.3 mg/kg) – demodicosis, sarcoptes treatment; 2) MILBEMYCIN OXIME high-dose; 3) MOXIDECTIN high-dose; 4) LOPERAMIDE (Imodium) – even normal dose; 5) ACEPROMAZINE; 6) BUTORPHANOL; 7) CHEMOTHERAPY drugs (vincristine, vinblastine, doxorubicin, paclitaxel); 8) DIGOXIN; 9) Some opioids; 10) Several others. SAFE FOR MDR1 at LABEL DOSES: 1) SELAMECTIN (Revolution) – topical heartworm/flea dose; 2) MILBEMYCIN OXIME (Interceptor) – heartworm prevention dose; 3) IVERMECTIN (Heartgard) – heartworm prevention dose ONLY (6 mcg/kg); 4) MOXIDECTIN (Advantage Multi) – topical heartworm dose; 5) ISOXAZOLINES (NexGard, Simparica, Bravecto) – generally safe; 6) Most other heartworm/flea products at labeled doses. WHY SELAMECTIN SAFE: 1) Therapeutic dose (6-12 mg/kg topical monthly) far below MDR1 toxicity threshold; 2) Topical absorption limited compared to oral; 3) Tested in MDR1 mutant Collies at 5-10x label dose – no adverse effects; 4) FDA-approved labeling reflects safety; 5) Decades of clinical use confirms; 6) Manufacturer (Zoetis) has safety data. WHEN MDR1 TESTING RECOMMENDED: 1) Before high-dose ivermectin treatment; 2) Before chemotherapy in at-risk breeds; 3) Adopting/purchasing at-risk breed puppy; 4) Mixed breed with herding ancestry; 5) Any concerning clinical signs after macrocyclic lactone exposure; 6) Breeding programs. SIGNS OF MDR1 TOXICITY (high-dose ivermectin): 1) ATAXIA (incoordination); 2) Tremors; 3) Hypersalivation; 4) Disorientation; 5) MYDRIASIS (dilated pupils); 6) BRADYCARDIA; 7) HYPOTHERMIA; 8) Coma; 9) Respiratory depression; 10) Death without aggressive supportive care; 11) Onset 4-12 hours post-exposure; 12) Treatment: lipid emulsion therapy (key antidote), supportive care. ALTERNATIVES if uncertain about safety: 1) MDR1 GENOTYPE TEST first; 2) Use only LABELED doses; 3) AVOID high-dose oral ivermectin in at-risk breeds; 4) Stick to topical selamectin or oral milbemycin; 5) Use ISOXAZOLINES for tick/flea coverage; 6) NEVER give human ivermectin (much higher concentration). CLINICAL CONFIDENCE: 1) Revolution used in millions of Collies safely; 2) No documented MDR1 toxicity at therapeutic dose; 3) Pfizer/Zoetis safety studies confirm; 4) Veterinary consensus supports use; 5) Recommended option for at-risk breeds. PRACTICAL APPROACH: 1) Adopting Collie/Aussie/Sheltie puppy – choose Revolution from start; 2) Mixed breed unknown ancestry – Revolution safe option; 3) Avoid high-dose oral ivermectin always in at-risk breeds; 4) Don’t give Imodium (loperamide); 5) Discuss all medications with vet; 6) Carry MDR1 status info for emergencies. PUPPIES of at-risk breeds: 1) Start Revolution from 6 weeks; 2) Establishes safe parasiticide habit; 3) Avoid alternatives until MDR1 status confirmed; 4) Genetic testing as adolescent if breeding considered.

How often do I apply Revolution and how long does it last?

MONTHLY APPLICATION (every 30 days) – this is critical for continuous protection. EFFICACY DURATION: 1) HEARTWORM PREVENTION – 30 days; killing larvae from previous month’s mosquito exposure; 2) FLEA control – lasts approximately 30 days; adult flea kill within 36 hours, ovicidal effect throughout; 3) EAR MITES – 30 days; one dose often sufficient but repeat 30 days for heavy infestation; 4) SARCOPTIC MANGE – monthly for 2-3 doses standard course; 5) AMERICAN DOG TICK (Revolution alone) – control for 30 days; 6) Revolution Plus tick coverage – 35 days (sarolaner). APPLICATION TIMING: 1) SAME DATE each month best – calendar reminder; 2) Use phone app (Pet Care Pro, Chewy reminders); 3) Day before bath day if scheduled; 4) After flea problem detected – apply ASAP regardless of schedule; 5) Before high-risk exposure (camping, kennel) – ensure recent dose; 6) Consistent timing important for cumulative effect. SEASONAL VS YEAR-ROUND: 1) YEAR-ROUND recommended for: a) Endemic heartworm areas (Southern US, Gulf Coast, Pacific Northwest); b) Tropical/subtropical climates; c) Travel between regions; d) Outdoor lifestyles; e) AAHA/American Heartworm Society recommendation; 2) SEASONAL for some Northern regions: a) Mosquito-free winter months; b) BUT – even one missed month can result in heartworm infection; c) Trade-off cost savings vs risk; d) Climate change extends mosquito season; e) Year-round generally safer + simpler; 3) DISCUSS WITH VET regional considerations. LATE DOSE PROTOCOL: 1) MISSED less than 2 weeks – apply immediately, return to normal schedule; 2) MISSED 2-4 weeks – apply immediately, vet contact possible; 3) MISSED more than 30 days – antigen test before resuming if dog has been exposed; 4) MISSED more than 2-3 months – definitely antigen test; 5) Mild risk of breakthrough infection with any lapse; 6) Restart monthly schedule from new dose date. CONTINUOUS COVERAGE benefits: 1) Heartworm larvae development blocked at L3-L4 stage; 2) Each missed month allows larvae to mature toward L5 (immature adult); 3) Mature adults cause symptoms + are harder to treat; 4) Even one missed dose = potential heartworm; 5) AHS reports rising heartworm-positive dogs partly due to incomplete year-round coverage. STORAGE between doses: 1) Original packaging; 2) Room temperature; 3) Away from heat/sun; 4) Away from children; 5) Check expiration; 6) Discard damaged tubes. TRAVEL CONSIDERATIONS: 1) Apply BEFORE traveling to endemic regions; 2) Carry tubes for trips longer than 1 month; 3) Climate change in destination affects mosquito populations; 4) International travel – regulations vary; 5) Hurricane areas – mosquito explosions; 6) Cruise vacations – bring travel-friendly supply. SHOPPING PATTERNS: 1) 3-pack (3 months); 2) 6-pack (6 months); 3) 12-pack (annual) – usually best price + rebates; 4) Manufacturer rebates seasonal; 5) Online pharmacy vs vet; 6) Cost approximately $15-30/dose depending on size + source; 7) Auto-ship subscriptions for convenience. SHORTAGE/SUPPLY ISSUES: 1) Occasional manufacturer shortages; 2) Switch to comparable product if unavailable: a) Advantage Multi (moxidectin + imidacloprid) – similar coverage + intestinal worms; b) Heartgard Plus + isoxazoline tick product; c) Interceptor Plus + topical flea; 3) Don’t skip if alternatives available; 4) Pharmacy compounded option (vet-supervised). CHANGING PRODUCTS: 1) Generally safe to switch; 2) Maintain monthly schedule; 3) New product start date = new schedule; 4) Some products kill broader spectrum than others; 5) Cost + convenience factors; 6) Vet consultation for transition. PUPPY GROWTH considerations: 1) Reassess weight each month; 2) May move to larger tube size; 3) Don’t underdose growing puppy; 4) Adult weight typically reached by 12-18 months (large breeds longer); 5) Senior weight may decrease – reassess. PRACTICAL TIPS: 1) Set monthly recurring reminder; 2) Buy in bulk (12-month); 3) Subscribe to auto-ship; 4) Apply at consistent time (morning before work, etc.); 5) Keep extra tube in case of damage; 6) Carry supply when boarding/traveling.

What does Revolution treat besides fleas and heartworm?

MULTIPLE PARASITES covered in single monthly topical. COMPLETE COVERAGE (Revolution selamectin only): 1) HEARTWORM PREVENTION (Dirofilaria immitis) – kills larvae from mosquito bites in past 30 days; prevents adult heartworm establishment; 2) FLEAS (Ctenocephalides felis – cat flea, C. canis – dog flea): a) Adult fleas killed within 36 hours; b) Flea eggs sterilized – cannot hatch; c) Flea larvae killed; d) Breaks environmental life cycle over 1-3 months; 3) EAR MITES (Otodectes cynotis): a) Single application often curative; b) Topical absorption reaches ears; c) Don’t put medication IN ear; d) Heavy infestation – repeat 30 days; e) Treat all in-contact pets including cats; 4) SARCOPTIC MANGE (Sarcoptes scabiei var. canis): a) 2-3 monthly applications standard; b) Zoonotic – humans can get transient itch; c) Highly contagious to other dogs; d) Diagnostic scrape may be negative but treat empirically if suspected; e) Confirm resolution 30-60 days; 5) AMERICAN DOG TICK (Dermacentor variabilis) – CONTROL only: a) Reduces tick burden; b) NOT comprehensive tick coverage; c) Limited to this single species; d) For full tick coverage – Revolution PLUS or add isoxazoline. WHAT REVOLUTION DOES NOT COVER (Revolution selamectin alone): 1) INTESTINAL WORMS in US dog label – hookworms, roundworms, whipworms; a) Use INTERCEPTOR PLUS (milbemycin + praziquantel) for comprehensive intestinal coverage; b) Or HEARTGARD PLUS (ivermectin + pyrantel) for heartworm + roundworm/hookworm; c) Or DRONTAL PLUS (separate dewormer); 2) MOST TICK SPECIES – Black-legged/Deer Tick (Lyme), Lone Star Tick (Ehrlichia, alpha-gal), Brown Dog Tick (Babesia), Gulf Coast Tick; a) Use REVOLUTION PLUS (adds sarolaner) for comprehensive tick coverage; b) Or pair Revolution with ISOXAZOLINE (Bravecto chewable q3 months, NexGard monthly, Simparica monthly, Credelio monthly); 3) DEMODEX MANGE – off-label use sometimes effective but not labeled; a) Better options: BRAVECTO, NEXGARD, SIMPARICA, or oral milbemycin protocols; 4) GIARDIA – parasitic protozoal infection; a) Treatment: metronidazole + fenbendazole + bathing; 5) COCCIDIA – parasitic protozoal; a) Treatment: Albon (sulfadimethoxine), ponazuril; 6) LYME DISEASE – bacterial (Borrelia burgdorferi); a) Prevention: tick prevention + Lyme vaccine; b) Treatment: doxycycline. REVOLUTION PLUS adds: 1) SAROLANER (isoxazoline) – comprehensive tick coverage; 2) Black-legged Tick, Lone Star Tick, Brown Dog Tick, Gulf Coast Tick + American Dog Tick; 3) Same selamectin coverage of heartworm/flea/ear mites/sarcoptes; 4) FDA isoxazoline class warning – rare neurologic events (muscle tremors, ataxia, seizures); 5) Higher cost; 6) 35-day duration (vs 30 days original Revolution). COMPARISON to other comprehensive products: 1) ADVANTAGE MULTI (imidacloprid + moxidectin topical): a) Heartworm prevention; b) Fleas; c) Sarcoptic mange; d) HOOKWORMS + ROUNDWORMS + WHIPWORMS (advantage over Revolution); e) NO tick coverage; 2) TRIFEXIS (spinosad + milbemycin oxime oral): a) Heartworm; b) Fleas; c) Hookworms, roundworms, whipworms; d) NO tick coverage; 3) BRAVECTO PLUS (fluralaner + moxidectin topical for CATS – not dogs); 4) NEXGARD COMBO (afoxolaner + others varies by region); 5) SIMPARICA TRIO (sarolaner + moxidectin + pyrantel) – comprehensive in single chewable. WHICH PRODUCT IS BEST varies by need: 1) MDR1-risk breed – Revolution (topical, MDR1-safe); 2) Tick-heavy area – Revolution Plus or Simparica Trio; 3) Intestinal worm risk – Advantage Multi or Simparica Trio; 4) Cost-sensitive – Heartgard + isoxazoline tick product separately; 5) Owner preference – topical vs oral; 6) Multi-dog household – simplify with single product; 7) Travel – all-in-one easier; 8) Specific allergies/sensitivities – work with vet. PRACTICAL CHOICES for different dogs: 1) NORTHERN US suburban dog – Revolution + monthly tick check often adequate; 2) SOUTHERN US Lyme endemic – Revolution Plus or Simparica Trio; 3) RURAL HUNTING DOG – comprehensive tick + heartworm needed; 4) CITY APARTMENT DOG – flea + heartworm focus, tick less critical; 5) PUPPY – start at 6 weeks Revolution; 6) MULTI-PET HOUSEHOLD – coordinate products; 7) HIGHER RISK breeds – layer protection. CONSULTATION WITH VET: 1) Regional parasite map; 2) Lifestyle assessment; 3) Travel patterns; 4) Other pets in household; 5) Cost considerations; 6) Specific concerns; 7) Year-round vs seasonal.

How do I apply Revolution to my dog?

TOPICAL APPLICATION between shoulder blades; specific technique matters. STEP-BY-STEP: 1) GATHER SUPPLIES: a) Correct tube color for dog’s weight; b) Calendar/app for reminder; c) Disposable gloves (optional, recommended); d) Hand soap nearby; e) Treats for cooperation; 2) PREPARE DOG: a) Dog should be DRY – no bath 2 hours before; b) Calm environment; c) Treats for distraction; d) Standing or sitting comfortable position; e) Helper if dog is squirmy; f) Some dogs prefer being held in lap; 3) PREPARE TUBE: a) Remove from packaging; b) Hold tube upright; c) Press cap to puncture seal (twist + press depending on design); d) Some tubes have foil seal – remove; e) Verify tube tip open; f) Hold tube ready; 4) PART HAIR: a) Find spot between shoulder blades; b) Above neck (so dog cannot lick); c) Part hair to expose skin; d) Single application spot; 5) APPLY MEDICATION: a) Place tube tip directly on SKIN (not on hair); b) Squeeze tube firmly; c) Apply ENTIRE contents; d) Single spot for small dogs; e) For very large dogs, may need 2 spots; f) Hold tube against skin throughout application; g) Verify all medication out of tube; 6) DO NOT RUB IN: a) Alcohol carrier evaporates; b) Rubbing reduces absorption; c) Let it dry naturally; d) Dog may shake; that’s OK; e) Some wet/sticky appearance temporarily normal; 7) WASH HANDS: a) Use soap + warm water; b) Even with gloves; c) Avoid touching face/eyes; d) Children + others shouldn’t touch site for 2+ hours; 8) WAIT PERIOD: a) Separate from other pets 2 hours minimum (prevent licking); b) No bathing 2-24 hours; c) No swimming 2-24 hours; d) Dog can sleep on bedding (alcohol evaporates quickly); e) Petting allowed after dry. COMMON MISTAKES to avoid: 1) APPLYING ON HAIR not skin – reduces absorption; 2) NOT APPLYING ENTIRE tube – inadequate dose; 3) BATHING before/after – reduces efficacy; 4) APPLYING WET dog – alcohol won’t penetrate properly; 5) MULTIPLE SPOTS for small dog – unnecessary; 6) RUBBING IN – alcohol evaporates with rubbing; 7) DOG LICKING site – hypersalivation possible; 8) WRONG TUBE SIZE – under or overdosing; 9) STOPPING after one dose – need monthly; 10) APPLYING TO WOUNDED SKIN – avoid broken skin. TROUBLESHOOTING: 1) DOG WON’T STAND STILL: a) Have helper hold; b) Apply during meal or treat distraction; c) Try when dog tired (after exercise); d) Praise + treats during/after; 2) DOG LICKS SITE: a) Distract immediately; b) Crate or muzzle 2 hours; c) Cone (Elizabethan collar) if persistent; d) Hypersalivation may occur if licked – usually self-resolves; e) Don’t induce vomiting; 3) MEDICATION ON FUR not skin: a) Try to push back to skin; b) Apply additional small amount on correct spot if substantial loss; c) Next month apply more carefully; 4) DAMAGED TUBE: a) Use complete contents anyway if possible; b) Contact pharmacy for replacement; c) Discard contaminated medication; 5) ALLERGIC REACTION at site: a) Mild redness usually self-resolves; b) Severe reaction – bathe area, contact vet; c) Document for future product changes. MULTIPLE PETS in household: 1) APPLY TO EACH SEPARATELY; 2) SEPARATE THEM 2+ hours after application; 3) Don’t let them groom each other; 4) Treat ALL pets monthly to prevent re-infestation; 5) Cats get DIFFERENT product (cat-specific Revolution); 6) Track each pet’s schedule separately. APPLICATION FREQUENCY: 1) MONTHLY (every 30 days); 2) Same date each month best; 3) Calendar/phone reminder; 4) Auto-ship reminds; 5) Pet care apps available. POST-APPLICATION OBSERVATIONS first 24 hours: 1) Mild lethargy possible; 2) Mild GI upset if licked; 3) Brief hypersalivation if licked; 4) Hair appears wet/sticky temporarily; 5) Most dogs no adverse effects; 6) Concerning signs – vet contact. STORAGE BETWEEN DOSES: 1) Room temperature 22-25°C; 2) Original packaging; 3) Away from children; 4) Don’t refrigerate; 5) Check expiration; 6) Discard damaged tubes. SAFETY for HUMANS: 1) Wash hands after application; 2) Avoid eye contact; 3) If accidental exposure – wash thoroughly; 4) Pregnant women, children – reasonable caution but topical exposure minimal; 5) Allergies to selamectin – wear gloves; 6) Empty tubes – dispose normally. PRACTICAL TIPS: 1) APPLY AT NIGHT – dog calmer, you have time; 2) AFTER MEAL – dog content; 3) DURING TV TIME – distraction; 4) WITH HELPER – control dog; 5) MARK CALENDAR immediately after; 6) PHOTOGRAPH UBES/lot numbers – in case of issue; 7) Make it positive – treats + praise.

Can puppies use Revolution and from what age?

REVOLUTION LABELED FOR PUPPIES 6 WEEKS AND OLDER. PUPPY-SPECIFIC DOSING + safety. AGE REQUIREMENT: 1) Minimum age 6 WEEKS; 2) No upper weight limit at this age; 3) Earliest reliable parasitic protection available; 4) Important to start prevention early – puppies vulnerable to fleas, mites, mange, intestinal worms; 5) Mosquito-borne heartworm exposure even in young puppies in endemic areas. WEIGHT-BASED TUBE for PUPPIES: 1) MAUVE (15 mg) up to 2.5 kg (5.5 lb); 2) Most puppies start with MAUVE; 3) Reassess EACH MONTH as puppy grows; 4) MOVE to larger tube as weight increases; 5) DON’T STAY on same tube as puppy outgrows; 6) Underdosing growing puppy = ineffective protection. PUPPY GROWTH TRAJECTORY example: 1) 6 weeks Lab Retriever – 5-6 kg = PURPLE; 2) 8 weeks – 7-8 kg = BROWN; 3) 12 weeks – 12-14 kg = RED; 4) 16 weeks – 18-20 kg = RED; 5) 6 months – 25-30 kg = TEAL; 6) 1 year – 30-35 kg = TEAL; 7) Check chart monthly + adjust. SAFETY in PUPPIES: 1) Multiple safety studies in puppies as young as 6 weeks; 2) Wide therapeutic margin; 3) Selamectin MDR1-safe for at-risk herding breed puppies; 4) Side effects rare and mild same as adults; 5) Topical absorption appropriate even in young animals. PUPPIES UNDER 6 WEEKS – alternatives: 1) MANUAL FLEA REMOVAL with flea comb; 2) MILD DAWN dish soap bath (1 min lather, thorough rinse) – kills fleas physically; 3) CAPSTAR (nitenpyram) – labeled for 4+ weeks AND 2+ pounds – oral, kills adult fleas within 30 minutes – emergency flea kill; 4) ENVIRONMENTAL TREATMENT – thoroughly clean bedding, vacuum, treat mother (if nursing); 5) EAR MITE management with otic ivermectin/milbemycin drops under vet guidance; 6) ROUNDWORMS – pyrantel pamoate from 2 weeks (most puppies have roundworms); 7) Wait until 6 weeks for Revolution start; 8) Consult vet for severe infestations in very young. PUPPY VACCINATION SCHEDULE coordination: 1) Vaccines typically 6-8 weeks first round; 2) Revolution can be applied SAME DAY as vaccines (no interaction); 3) Many vets do first vaccine + first Revolution together; 4) Practical bundling reduces visits; 5) Document all vaccines + parasite prevention; 6) Heartworm test not needed in puppies under 6 months. INTESTINAL WORMS – Revolution does NOT cover in US dog label: 1) Roundworms (Toxocara canis) – VERY common in puppies; 2) Hookworms (Ancylostoma caninum); 3) Whipworms (Trichuris vulpis); 4) Tapeworms – need praziquantel; 5) PUPPY DEWORMING SCHEDULE: a) 2 weeks – pyrantel pamoate; b) 4 weeks – pyrantel; c) 6 weeks – pyrantel; d) 8 weeks – pyrantel or other dewormer; e) 10 weeks – dewormer; f) Monthly thereafter with comprehensive prevention; 6) ALTERNATIVE products covering intestinal worms: a) Interceptor Plus (milbemycin + praziquantel) – from 6 weeks/2 lb; b) Advantage Multi (moxidectin + imidacloprid) – from 7 weeks/3 lb; c) Heartgard Plus (ivermectin + pyrantel) – from 6 weeks; d) Trifexis (spinosad + milbemycin) – from 8 weeks/5 lb; 7) Many vets recommend Revolution + separate intestinal dewormer for puppy. PUPPY HEARTWORM CONSIDERATIONS: 1) START AS EARLY AS 6 WEEKS in endemic areas; 2) NO heartworm test needed under 6 months (not enough time to develop antigen); 3) Monthly prevention prevents infection; 4) Important to start before mosquito exposure; 5) Don’t wait until puppy older – mosquito-borne infection possible early. APPLICATION TECHNIQUE for PUPPIES: 1) PUPPY MAY BE SQUIRMY – have helper hold; 2) SMALLER AMOUNT to apply – quicker; 3) Distract with treats; 4) Apply when calm (after meal/play); 5) MAUVE tube smaller volume – less spillage; 6) Standard between-shoulder-blades technique; 7) Use ENTIRE tube even if small dose; 8) Verify all applied. SEPARATION after application: 1) Puppy + mother + littermates – separate 2 hours; 2) Prevent licking each other; 3) Crate or x-pen during waiting period; 4) Bathroom breaks supervised; 5) Brief separation usually well-tolerated. NURSING MOTHER on Revolution: 1) SAFE for lactating dogs per label; 2) Minimal milk transfer; 3) Treats fleas in mother + by extension babies environmental; 4) Nursing puppies safe per label; 5) Maintain monthly schedule. PUPPY ALLERGIES: 1) Rare allergic reaction to selamectin or carrier; 2) Mild skin irritation at site possible; 3) Severe reaction – bathe + vet; 4) Try alternative product if needed; 5) Document for medical history. ADOPTION/RESCUE PUPPIES: 1) Check shelter records for parasite prevention; 2) Bring up to date if behind; 3) Coordinate with adoption schedule; 4) FECAL EXAM recommended for new puppies; 5) DECONTAMINATE home before adding new puppy; 6) Start Revolution if 6+ weeks; younger – work with vet. PRACTICAL TIPS: 1) Set monthly reminder from puppy’s first dose; 2) Re-weigh monthly for tube size; 3) Combine with regular check-ups; 4) Document weight + tube; 5) Educate family; 6) Make positive experience for puppy; 7) Continue lifetime.

Related PuppaDogs Calculators

Continue building your dog’s personalised care plan with these related PuppaDogs calculators:

• Dog Pregnancy / Whelping Due-Date Calculator
• Puppy Weight Predictor (Adult Weight Calculator)
• Heatstroke Risk Calculator for Dogs
• Bloat (GDV) Risk Calculator for Dogs
• Dog Life Expectancy Calculator (Breed, Body Condition, Lifestyle)
• Spay/Neuter Timing Calculator for Dogs (Breed-Specific)

References & Further Reading

The dosing ranges and safety information on this page are drawn from the following veterinary references. Always defer to your own veterinarian and the manufacturer’s label for your specific product.

1. Revolution (selamectin) product information – Zoetis.
2. Plumb DC. Plumb’s Veterinary Drug Handbook – selamectin.
3. American Heartworm Society Guidelines.
4. Mealey KL et al. MDR1 mutation in dogs – clinical implications.
5. Washington State University Veterinary Clinical Pharmacology Laboratory – MDR1 testing.
6. AAHA Parasite Control Guidelines.
7. Companion Animal Parasite Council (CAPC) Guidelines.
8. Bishop BF et al. Selamectin: a novel broad-spectrum endectocide for dogs and cats.
9. Krautmann MJ et al. Safety of selamectin in dogs.
10. Genchi C et al. Efficacy of selamectin in the prevention of canine heartworm infection.
11. Six RH et al. Safety of selamectin in puppies.
12. PuppaDogs. Heartworm Risk & Prevention Calculator, Flea & Tick Coverage Calculator, Sarcoptic Mange Calculator, Ear Mite Calculator. puppadogs.com.

Suyash Dhoot