Death after Penicillin G Procaine in horses

23 reports to the FDA describe death in horses given Penicillin G Procaine. That is 29% of all reports for this medicine, compared with 11% across reports for all horse medicines, so it is reported unusually often with this medicine.

23Reports
8.7%Marked serious
0.0%Recovered
100%Died or euthanised
–Typical onset
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How the animals did

Died
22 96%
Euthanised
1 4.3%

Problems reported at the same time

Collapse
9 39%
Respiratory distress
3 13%
Tremors
3 13%
Wobbliness (ataxia)
3 13%
Seizures
2 8.7%
Breathing problems
2 8.7%

Age of the animals

Under 1 year
1
1–3 years
14
4–7 years
3
8–11 years
4
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Penicillin G Procaine cause death in horses?
23 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).

Death with similar medicines

All reported side effects of Penicillin G Procaine in horses · Medicines most reported with death