Intentional misuse after Melarsomine (Immiticide) in dogs

76 reports to the FDA describe intentional misuse in dogs given Melarsomine. That is 0.3% of all reports for this medicine, compared with 0.4% across reports for all dog medicines.

76Reports
93%Marked serious
7.9%Recovered
2.6%Died or euthanised
92 daysTypical onset
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How soon it started

Same day
18 27%
1–2 days
0 0.0%
3–7 days
3 4.5%
1–4 weeks
4 6.1%
Over a month
41 62%

How the animals did

Recovered
6 7.9%
Still unwell when reported
67 88%
Died
2 2.6%
Not known
1 1.3%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
40
4–7 years
24
8–11 years
10
12+ years
2

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 intentional misuse in dogs?
76 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 92 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).

Intentional misuse with similar medicines

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