Updated 2026-09-06 · Prices in AUD · Recall feed checked daily
🇦🇺 Australia
Home Australia vet costs Hyperthyroidism, radioiodine (I-131)
🇦🇺 Australia · Emergency & major

Hyperthyroidism, radioiodine (I-131) cost across Australia

One-off radioactive iodine treatment that cures more than 95 percent of hyperthyroid cats, including the required isolation stay.

A$1,520–A$3,325national typical range (AUD)
Sydneymost expensive city
Hobartleast expensive city
Top 10

Where it costs most

SydneyA$2,905
MelbourneA$2,715
CanberraA$2,665
PerthA$2,470
BrisbaneA$2,420
DarwinA$2,420
GeelongA$2,420
Gold CoastA$2,375
CairnsA$2,375
TownsvilleA$2,350
Save money

Ways to pay less

  • Vets normally trial methimazole for four to six weeks first, because treatment can unmask hidden kidney disease.
  • Cheaper over a cat's remaining life than years of daily tablets and monitoring.
Insurance check

Insured cats in Cairns would get roughly A$2,135 of this back.

Typical plans reimburse 80–90% after the deductible, for about A$42–A$90/month for a young cat.

Full table

All 16 cities

CityTypical rangeIndex
Sydney NSWA$1,825–A$3,990
Melbourne VICA$1,700–A$3,725
Canberra ACTA$1,670–A$3,660
Perth WAA$1,550–A$3,390
Brisbane QLDA$1,520–A$3,325
Darwin NTA$1,520–A$3,325
Geelong VICA$1,520–A$3,325
Gold Coast QLDA$1,490–A$3,260
Cairns QLDA$1,490–A$3,260
Townsville QLDA$1,475–A$3,225
Ballarat VICA$1,460–A$3,190
Newcastle NSWA$1,445–A$3,160
Toowoomba QLDA$1,445–A$3,160
Bendigo VICA$1,445–A$3,160
Adelaide SAA$1,415–A$3,090
Hobart TASA$1,400–A$3,060
FAQ

Questions

What is the average cost of hyperthyroidism, radioiodine (i-131) in Australia?

Nationally A$1,520–A$3,325 in 2026. Sydney is the most expensive city we track; Hobart the least.

Why do prices vary so much between cities?

Rent, staff wages, equipment and competition. Big-city specialty hospitals can charge double what a rural clinic does for the same procedure.

Does pet insurance cover hyperthyroidism, radioiodine (i-131)?

Yes, on most accident-and-illness plans after the deductible.

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