Puppy parasite plan 6–12 months
Introduction
From six months to the first birthday, growth slows and routines settle. This is the time to lock in a plan that you can keep for the adult years.
Core schedule at a glance
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Intestinal worms: most dogs move to every 3 months from 6 months of age, unless your monthly product already covers them.
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Heartworm prevention: continue monthly year-round.
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Fleas and ticks: continue your chosen product on time. Add quick daily tick checks in risk areas.
Keep up with growth
Re-weigh monthly and move to the next weight band when needed. Giant and large breeds may change bands more than once in this window.
Choose a format that fits your life
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Monthly chews suit owners who like a clear date in the calendar.
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Long-acting chews reduce the number of applications across the year.
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Set a phone reminder and treat every dog in the home on the same day.
Travel and sport
Dose a few days before holidays or training trips so protection is active. Pack the next dose if your due date falls while away. After bush or beach days, do a full tick search that night and the next morning.
Safety you should always check
Dog products for dogs only. Match weight band and minimum age. Do not stack preventatives unless your vet advises. Ask your vet before dosing if your dog is unwell or on other medicines.
Products we trust
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Simparica Trio Chewable Tablet for Dogs — monthly protection that also includes heartworm prevention and common intestinal worms when used as directed.
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NexGard Chewables for Dogs — monthly flea and tick control that suits bath and swim routines.
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Bravecto Chew for Dogs — long-acting flea and tick control.
FAQ
When do I switch to an adult plan
Most dogs move to the adult routine at 12 months. Your vet may adjust based on size, lifestyle, or region.
What if I missed a month
Give the dose today and reset your reminders. If you missed heartworm prevention, ask your vet whether testing is needed before restarting.
Do I need to protect an indoor-only young dog
Yes. Fleas hitchhike in and heartworm is spread by mosquitoes.
Want help locking in a 12-month plan
Share your dog’s age, weight, and travel plans and we will map it for you — contact us.
Also in Dr. Feargus’ Australian Pet Health Blog
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Travelling tradies with dogs: parasite guide
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