Lateral recumbency after Melarsomine (Immiticide) in dogs

159 reports to the FDA describe lateral recumbency in dogs given Melarsomine. That is 0.7% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

159Reports

90%Marked serious

23%Recovered

21%Died or euthanised

5 daysTypical onset

How soon it started

Same day

63 42%

1–2 days

7 4.6%

3–7 days

16 11%

1–4 weeks

30 20%

Over a month

35 23%

How the animals did

Recovered

36 23%

Recovered with lasting effects

1 0.6%

Still unwell when reported

58 36%

Died

20 13%

Euthanised

14 8.8%

Not known

30 19%

Problems reported at the same time

56 35%

51 32%

34 21%

33 21%

31 19%

30 19%

27 17%

27 17%

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 lateral recumbency in dogs?: 159 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 5 days 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).

Lateral recumbency with similar medicines

Lateral recumbency after Polysulfated Glycosaminoglycan 30 reports · 0.5% of its reports
Lateral recumbency after Diphenhydramine 94 reports · 2.0% of its reports
Lateral recumbency after Butorphanol 56 reports · 1.3% of its reports
Lateral recumbency after Cefpodoxime 33 reports · 0.8% of its reports
Lateral recumbency after Tramadol 58 reports · 1.5% of its reports
Lateral recumbency after Propofol 31 reports · 1.0% of its reports
Lateral recumbency after Isoflurane 34 reports · 1.2% of its reports
Lateral recumbency after Cephalexin 21 reports · 0.8% of its reports
Lateral recumbency after Famotidine 71 reports · 2.7% of its reports
Lateral recumbency after Chondroitin + Glucosamine 21 reports · 0.8% of its reports

All reported side effects of Melarsomine in dogs · Medicines most reported with lateral recumbency