Picking the Right Pack by Weight in NZ: No More Guessing
Why pack size matters
Choosing the wrong weight band can underdose or overdose your pet. The right pack keeps protection safe and effective.
Quick ways to weigh at home
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Bathroom scales. Weigh yourself, then weigh yourself holding your pet. Subtract the difference.
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Cat carrier trick. Weigh the empty carrier, then pet plus carrier. Subtract.
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Record it. Save today’s weight in your phone so you have it next time.
Three-step selection
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Weigh today. Do not guess or use last year’s weight.
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Open the product page. Choose the weight band that covers your pet’s current weight.
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On the edge of two bands. Ask your vet or contact us before you pick.
Puppies and kittens
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Weight changes fast. Reweigh before every dose.
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Do not stockpile many months ahead. Size can change between doses.
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If you miss a growth jump and gave the wrong band, call your vet for next steps.
When to recheck weight
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After a growth spurt or body shape change.
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Before switching between a chew and a spot-on.
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After desexing or a new diet.
Common pitfalls to avoid
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Splitting one dose between two pets. Unsafe and ineffective.
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Using dog products on cats. Never do this.
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Guessing sizes for visiting or foster pets. Weigh first.
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Dosing late. Set phone reminders so you do not miss dates.
Trusted products and where to choose the right pack
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Dogs, monthly all-in-one chew: Simparica Trio
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Dogs, monthly flea and tick chew: Nexgard chewables for dogs
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Cats, broad monthly spot-on with tick cover: Revolution Plus
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Cats, monthly broad cover without ticks: Revolution topical solution for cats
Simple dosing safety
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Match species and weight band every time.
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Apply spot-ons to clean, dry skin and keep the site away from children and other pets until dry.
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Do not combine treatments unless your vet advises it.
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Read the label each time, even if you have used the product before.
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If your pet has a health condition, is pregnant, or takes other medicines, ask your vet first.
FAQ
Do indoor cats still need the correct weight band
Yes. Accurate dosing matters for every cat, even indoors. Weigh before each monthly application.
Can I keep using the same pack if my puppy grew
Reweigh before the next dose. If your pup moved into a new band, switch to the correct pack for safe coverage.
Not sure which pack fits today
Tell us your pet’s age, exact weight and routine and we will guide you with clear, practical advice. Contact us.
