POM-V Prescription Required Companion Animal

Pentoject, Pentobarbitone Sodium 200 mg/ml Solution for Injection

Active ingredient: Pentobarbital Sodium

Form

Injection

Species

Cats Dogs Mink Rodents

Manufacturer

Ecuphar NV

VMD MA No.

32742/4033

What it's used for

Euthanasia in the target species.

Full indications, dosage and side effects ↓

View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Pentobarbital Sodium

1

Ask your vet for a written prescription

They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
2

Fill it at a registered online retailer

The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Your prescription rights → VMD register of retailers →

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Pentoject, Pentobarbitone Sodium 200 mg/ml Solution for Injection — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

Euthanasia in the target species.

Not for use in anaesthesia.

Body spasms may occur in some animals which may distress observers. Very
low frequency when an appropriate dose is used and administered rapidly.

None

i. Special precautions for use in animals
Use only for euthanasia.

Revised: June 2024
AN: 01510/2023
ii. Special precautions for the person administering the veterinary medicinal
product to animals
In the event of accidental self-administration, by injection or skin
absorption, seek URGENT medical attention advising the medical
services of barbiturate poisoning and show this advice. This is a potent
drug which is toxic in man – particular care should be taken to avoid
accidental ingestion and self-injection.
In the event of accident the following action should be taken:
Skin – Wash immediately with water and then thoroughly with soap and
water. Eyes – Wash immediately with cold water and obtain medical
advice.
Ingestion – Obtain medical attention immediately. Wash out mouth.
Keep warm and rest.
Accidental self- injection – Obtain URGENT medical attention, advising
medical services of barbiturate poisoning. Do not leave patient
unattended.
Advice to Doctor – Maintain airways and give symptomatic and
supportive treatment. This product is not sterile.
iii. Other precautions
None

Not applicable.

Do not store above 25ºC. Protect from light.
This product does not contain any antimicrobial preservative.
Following withdrawal of the first dose use within 28 days. Discard unused
material.
Discard container if any sediment is observed,

Not for use in animals intended for human or animal consumption.
5.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.