Hyperhidrosis after Clenbuterol Hydrochloride in horses

The FDA has received 22 reports of hyperhidrosis in horses after Clenbuterol Hydrochloride. That is 22% of all reports for this medicine, compared with 1.7% across reports for all horse medicines, so it is reported unusually often with this medicine.

22Reports

9.1%Marked serious

4.5%Recovered

14%Died or euthanised

–Typical onset

How the animals did

Recovered

1 4.5%

Died

3 14%

Not known

18 82%

Problems reported at the same time

Tachycardia

9 41%

Tremors

4 18%

Restlessness or agitation

4 18%

Abdominal pain

4 18%

Wobbliness (ataxia)

3 14%

Death

3 14%

Itching

3 14%

Recumbency

2 9.1%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Clenbuterol Hydrochloride cause hyperhidrosis in horses?: 22 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.
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).

Hyperhidrosis with similar medicines

Hyperhidrosis after Detomidine 37 reports · 3.7% of its reports
Hyperhidrosis after Flunixin Meglumine 24 reports · 3.9% of its reports

All reported side effects of Clenbuterol Hydrochloride in horses · Medicines most reported with hyperhidrosis