Urinary incontinence after Melarsomine (Immiticide) in dogs

121 reports to the FDA describe urinary incontinence in dogs given Melarsomine. That is 0.5% of all reports for this medicine, compared with 0.6% across reports for all dog medicines.

121Reports
45%Marked serious
3.3%Recovered
5.0%Died or euthanised
5 daysTypical onset
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How soon it started

Same day
17 25%
1–2 days
13 19%
3–7 days
9 13%
1–4 weeks
17 25%
Over a month
13 19%

How the animals did

Recovered
4 3.3%
Still unwell when reported
34 28%
Died
4 3.3%
Euthanised
2 1.7%
Not known
77 64%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
55
4–7 years
40
8–11 years
19
12+ years
3

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 urinary incontinence in dogs?
121 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).

Urinary incontinence with similar medicines

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