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POM-V Prescription Required Companion Animal

Vetergesic Multidose, 0.3 mg/ml Solution for Injection for Dogs, Cats and Horses

Active ingredient: Buprenorphine

Form

Injection

Species

Cats Dogs Horses

Manufacturer

Ceva Sante Animale

VMD MA No.

14966/3029

What it's used for

Post-operative analgesia in the dog, cat and horse. Potentiation of the sedative effects of centrally-acting agents in the dog and horse. When used in hors...

Full indications, dosage and side effects ↓
View official SPC (PDF)

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Prescription required

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Clinical information

Vetergesic Multidose, 0.3 mg/ml Solution for Injection for Dogs, Cats and Horses — SPC Details

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

Post-operative analgesia in the dog, cat and horse.
Potentiation of the sedative effects of centrally-acting agents in the dog and horse.
When used in horses, an intravenous sedative should be administered within five
minutes prior to injection of buprenorphine.
Administration: Dog – intramuscular or intravenous injection
Cat – intramuscular or intravenous injection
Horse - intravenous injection
SpeciesRoute of
Administratio
n
Post-Operative
Analgesia
Potentiation of
Sedation
DogIntramuscular
or intravenous
injection
10-20 micrograms per kg
(0.3-0.6ml per 10kg).
For further pain relief,
repeat if necessary after
3-4 hours with 10
microgram per kg or 5-6
hours with 20 microgram
per kg.
10-20 micrograms
per kg (0.3-0.6ml per
10kg).
CatIntramuscular
or intravenous
injection
10 – 20 microgram per kg
(0.3 – 0.6ml per 10kg),
repeated if necessary,
once, after 1 - 2 hours.
---HorseIntravenous
injection
10 microgram per kg (3.3
mL per 100 kg), 5
minutes after
administration of an iv
sedative. The dose may
be repeated if
necessary, once, after
not less than 1 - 2 hours
5 micrograms per kg
(1.7mL per 100kg) 5
minutes after
administration of an
iv sedative. The dose
may be repeated if
necessary after 10
minutes
In dogs, sedative effects are present by 15 minutes after administration.
Analgesic activity may not develop fully until 30 minutes. To ensure that analgesia
is present during surgery and immediately on recovery, the product should be
administered preoperatively as part of premedication.
When administered for potentiation of sedation or as part of premedication, the
dose of other centrally-acting agents, such as acepromazine or medetomidine,
should be reduced. The reduction will depend on the degree of sedation required,
the individual animal, the type of other agents included in premedication and how
anaesthesia is to be induced and maintained. It may also be possible to reduce
the amount of inhalational anaesthetic used.
Animals administered opioids possessing sedative and analgesic properties may
show variable responses. Therefore, the response of individual animals should be
monitored and subsequent doses should be adjusted accordingly. In some cases,

Revised: September 2025
AN: 01877/2025
repeat doses may fail to provide additional analgesia. In these cases,
consideration should be given to using a suitable injectable NSAID.
An appropriately graduated syringe must be used to allow accurate dosing.
Do not administer by the intrathecal or peridural route.
Do not use pre-operatively for Caesarian section (see Section 4.7).
Not to be used in horses intended for human consumption. Treated horses may
never be slaughtered for human consumption. The horse must have been
declared as not intended for human consumption under national horse passport
legislation.
Salivation, bradycardia, hypothermia, agitation, dehydration and miosis can occur
in the dog, and rarely hypertension and tachycardia.
Mydriasis and signs of euphoria (excessive purring, pacing, rubbing) commonly
occur in cats and will usually resolve within 24 hours.
Buprenorphine may cause respiratory depression. (refer to section 4.5i)
When used to provide analgesia in horses, sedation is rarely seen, but may occur
at dose levels higher than those recommended. When used in conjunction with
sedatives or tranquillisers, excitation is normally minimal, but ataxia may
occasionally be marked. Colic is rarely reported.
None

Revised: September 2025
AN: 01877/2025

i) Special precautions for use in animals
Buprenorphine may cause respiratory depression and as with other opioid
drugs, care should be taken when treating animals with impaired
respiratory function or animals that are receiving drugs that can cause
respiratory depression.
In case of renal, cardiac or hepatic dysfunction or shock, there may be
greater risk associated with the use of the product. The benefit: risk
assessment for using the product should be made by the attending vet.
Safety has not been fully evaluated in clinically compromised cats.
Buprenorphine should be used with caution in animals with impaired liver
function, especially biliary tract disease, as the substance is metabolised
by the liver and its intensity and duration of action may be affected in such
animals.
The safety of buprenorphine has not been demonstrated in animals less
than 7 weeks of age, therefore, use in such animals should be based on
the risk: benefit assessment of the veterinarian.
Repeat administration earlier than the recommended repeat interval
suggested in Section 4.9 is not recommended.
Long-term safety of buprenorphine has not been investigated beyond 5
consecutive days of administration in cats or 4 separate administrations on
three consecutive days in horses.
The effect of an opioid on head injury is dependent on the type and
severity of the injury and the respiratory support supplied. The product
should be used in accordance with the benefit:risk assessment of the
attending veterinarian.
Safety has not been evaluated in clinically-compromised horses. In
horses, use of opioids has been associated with excitation, but effects with
buprenorphine are minimal when administered in conjunction with
sedatives and tranquilisers such as detomidine, romifidine, xylazine and
acepromazine. The safety of buprenorphine has not been demonstrated
in horses younger than 10 months old and weighing less than 150kg;
therefore, use in such animals should be based on the risk: benefit
assessment of the veterinarian.
Ataxia is a known effect of detomidine and similar agents; consequently it
may be seen after administration of buprenorphine with such substances.
Occasionally, ataxia may be marked. To ensure ataxic horses sedated
with detomidine/buprenorphine do not lose their balance, they should not
be moved or otherwise handled in any way that would compromise their
stability.
ii) Special precautions to be taken by the person administering the veterinary
medicinal product to animals
Wash hands/affected area thoroughly after any accidental spillage.
As buprenorphine has opioid-like activity, care should be taken to avoid
self-injection. In case of accidental self-injection or ingestion, seek medical

Revised: September 2025
AN: 01877/2025
advice immediately and show the package leaflet or the label to the
physician.
Following eye contamination or skin contact, wash thoroughly with cold
running water. Seek medical advice if irritation persists.
Buprenorphine may cause some drowsiness, which may be potentiated by other
centrally acting agents, including tranquillisers, sedatives and hypnotics.
There is evidence in humans to indicate that therapeutic doses of buprenorphine
do not reduce the analgesic efficacy of standard doses of an opioid agonist, and
that when buprenorphine is employed within the normal therapeutic range,
standard doses of opioid agonist may be administered before the effects of the
former have ended without compromising analgesia. However, it is recommended
that buprenorphine is not used in conjunction with morphine or other opioid-type
analgesics, e.g. etorphine, fentanyl, pethidine, methadone, papaveretum or
butorphanol.

Revised: September 2025
AN: 01877/2025
Buprenorphine has been used with acepromazine, alphaxalone/alphadalone,
atropine, detomidine, dexmedetomidine, halothane, isoflurane, ketamine,
medetomidine, propofol, romifidine, sevoflurane, thiopentone and xylazine. When
used in combination with sedatives, depressive effects on heart rate and
respiration may be augmented.
Keep the vial in the outer carton in order to protect from light.
Shake well before use.
Not authorised for use in horses intended for human 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.

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