Eye or vision problems after Butorphanol in cats

The FDA has received 135 reports of eye or vision problems in cats after Butorphanol. That is 6.0% of all reports for this medicine, compared with 2.3% across reports for all cat medicines, so it is reported unusually often with this medicine.

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How soon it started

How the animals did

Problems reported at the same time

Age of the animals

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause eye or vision problems in cats?

135 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 the same day 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).

Eye or vision problems with similar medicines

• Eye or vision problems after Ketamine 195 reports · 6.0% of its reports
• Eye or vision problems after Isoflurane 123 reports · 6.1% of its reports
• Eye or vision problems after Tiletamine + Zolazepam 115 reports · 6.9% of its reports
• Eye or vision problems after Methylprednisolone 31 reports · 1.9% of its reports
• Eye or vision problems after Propofol 76 reports · 6.5% of its reports
• Eye or vision problems after Atipamezole 42 reports · 4.1% of its reports
• Eye or vision problems after Midazolam 45 reports · 6.0% of its reports
• Eye or vision problems after Florfenicol + Mometasone + Terbinafine 24 reports · 3.5% of its reports
• Eye or vision problems after Orbifloxacin 166 reports · 24% of its reports
• Eye or vision problems after Acepromazine 25 reports · 4.2% of its reports

All reported side effects of Butorphanol in cats · Medicines most reported with eye or vision problems