Acetylcysteine side effects in dogs

61 reports sent to the FDA between 2012 and 2026 involve Acetylcysteine in dogs. The most reported problems were liver problems, loss of appetite, vomiting. 89% were marked serious.

61Reports
89%Marked serious
0.0%Only medicine involved
3.3%Recovered
59%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

34 56%
28 46%
Leucocytosis
15 25%
Diarrhea
14 23%
Prolonged one stage prothrombin time (ospt)
14 23%
Hypokalaemia
13 21%
Blood problems
12 20%
Weakness
12 20%
Tachycardia
12 20%
Gall bladder & bile duct disorder
11 18%
Hypoglycaemia
11 18%

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't work as expected
5 8.2%

How soon problems started

Same day
15 29%
1–2 days
7 13%
3–7 days
4 7.7%
1–4 weeks
15 29%
Over a month
11 21%

Time from the first dose to the first sign, where both dates were reported (52 reports).

How the animals did

Recovered
1 1.6%
Recovered with lasting effects
1 1.6%
Still unwell when reported
17 28%
Died
15 25%
Euthanised
21 34%
Not known
6 9.8%

Breeds named most often

Popular breeds appear more often because there are more of them.

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