Cough after Melarsomine (Immiticide) in dogs

937 reports to the FDA describe cough in dogs given Melarsomine. That is 4.1% of all reports for this medicine, compared with 0.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

937Reports
41%Marked serious
7.7%Recovered
12%Died or euthanised
16 daysTypical onset
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How soon it started

Same day
65 16%
1–2 days
39 9.5%
3–7 days
50 12%
1–4 weeks
116 28%
Over a month
140 34%

How the animals did

Recovered
59 6.3%
Recovered with lasting effects
13 1.4%
Still unwell when reported
155 17%
Died
95 10%
Euthanised
22 2.3%
Not known
593 63%

Problems reported at the same time

Age of the animals

Under 1 year
8
1–3 years
357
4–7 years
381
8–11 years
129
12+ years
26

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 cough in dogs?
937 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 16 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).

Cough with similar medicines

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