Gagging after Melarsomine (Immiticide) in dogs

86 reports to the FDA describe gagging in dogs given Melarsomine. That is 0.4% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

86Reports

40%Marked serious

3.5%Recovered

14%Died or euthanised

7 daysTypical onset

How soon it started

Same day

9 23%

1–2 days

3 7.7%

3–7 days

8 21%

1–4 weeks

9 23%

Over a month

10 26%

How the animals did

Recovered

3 3.5%

Still unwell when reported

14 16%

Died

9 10%

Euthanised

3 3.5%

Not known

57 66%

Problems reported at the same time

44 51%

28 33%

26 30%

23 27%

19 22%

Abnormal radiograph finding

15 17%

Drooling

13 15%

Death

13 15%

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 gagging in dogs?: 86 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 7 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).

Gagging with similar medicines

Gagging after Diphenhydramine 33 reports · 0.7% of its reports

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