Reluctant to move after Melarsomine (Immiticide) in dogs

The FDA has received 213 reports of reluctant to move in dogs after Melarsomine. That is 0.9% of all reports for this medicine, compared with 0.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

213Reports

29%Marked serious

14%Recovered

9.4%Died or euthanised

1 daysTypical onset

How soon it started

Same day

43 46%

1–2 days

15 16%

3–7 days

4 4.3%

1–4 weeks

9 9.7%

Over a month

22 24%

How the animals did

Recovered

29 14%

Still unwell when reported

39 18%

Died

19 8.9%

Euthanised

1 0.5%

Not known

125 59%

Problems reported at the same time

Loss of appetite

64 30%

Lethargy

59 28%

Pain

59 28%

Injection site reaction

58 27%

43 20%

34 16%

27 13%

22 10%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Melarsomine treats adult heartworm infection (a series of injections given by a vet).

Products with this ingredient include Immiticide, Diroban. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Melarsomine cause reluctant to move in dogs?: 213 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 1 day of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Reluctant to move with similar medicines

Reluctant to move after Polysulfated Glycosaminoglycan 107 reports · 2.0% of its reports
Reluctant to move after Diphenhydramine 76 reports · 1.6% of its reports
Reluctant to move after Butorphanol 60 reports · 1.4% of its reports
Reluctant to move after Cefpodoxime 41 reports · 1.0% of its reports
Reluctant to move after Tramadol 62 reports · 1.6% of its reports
Reluctant to move after Florfenicol + Mometasone + Terbinafine 31 reports · 0.9% of its reports
Reluctant to move after Isoflurane 25 reports · 0.9% of its reports
Reluctant to move after Atipamezole 24 reports · 0.9% of its reports
Reluctant to move after Famotidine 55 reports · 2.1% of its reports
Reluctant to move after Chondroitin + Glucosamine 37 reports · 1.4% of its reports

All reported side effects of Melarsomine in dogs · Medicines most reported with reluctant to move