Azaporc 40 mg/ml Solution for Injection for Pigs
Active ingredient: Azaperone
Form
Injection
Species
Manufacturer
Serumwerk Bernburg AG
VMD MA No.
20631/5000
What it's used for
A neuroleptic sedative: 1) For the use in animals with aggressive behaviour - following re-grouping - in sows (devouring of piglets) 2) For the use in anim...
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Azaporc 40 mg/ml Solution for Injection for Pigs — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.
1) For the use in animals with aggressive behaviour
- following re-grouping
- in sows (devouring of piglets)
2) For the use in animals with stress and prevention of stress
- cardiovascular stress
- transport-related stress
3) Obstetrics
4) Premedication for local or general anaesthesia
5) For relief of symptoms in animals with nutritional muscular dystrophy.
Revised: March 2023
AN: 02971/2021Page 2 of 7
(increased by inhibition of hypothalamic heat regulation centre) due to peripheral
vasodilation may occur.
The veterinary medicinal product is contraindicated for use in transport or for re-
grouping of pigs which will be slaughtered prior to the end of the withdrawal period.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
Undetermined frequency:Increased salivation*, tremor*, panting*
Reversible penile prolapse in boars
*(at high doses). These side effects disappear spontaneously and leave no lasting
damage.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder <or its local representative> or the national
competent authority via the national reporting system. See also the last section of the
package leaflet for respective contact details.
Insufficient results may be obtained if the animals are disturbed or chased during the
induction period.
Injection into adipose tissue may lead to apparent insufficient effect.
i) Special precautions for use in animals
Occasional deaths have been observed in Vietnamese Pot Bellied pigs. It is thought
this may be caused by injection into the fat leading to slow induction and tendency to
use additional doses, leading to overdosage. It is important with this breed not to
exceed the stated dose.
If the initial dose does not appear to have an effect, allow complete recovery before
re-injecting on a different day.
ii)Special precautions to be taken by the person administering the
veterinarymedicinal product to animals
Azaperone, sodium metabisulfite, and methyl and propyl parahydroxybenzoate can
cause hypersensitivity reactions. People with known hypersensitivity to azaperone or
any of the excipients should avoid contact with the product.
This product may be irritant to the skin, eyes and oral mucosa. Avoid contact with the
skin, eyes and oral mucosa. Wash any splashes from skin, eyes and oral mucosa
immediately with plenty of water. Seek medical advice if irritation persists.
Accidental self-injection or ingestion may result in sedation. Care should be taken to
avoid accidental self-injection. Only carry this veterinary medicinal product in an
unarmed syringe to avoid accidental injection. In case of accidental self-injection
seek medical advice immediately and show the package leaflet or the label to the
physician. DO NOT DRIVE.
The veterinary medicinal product should not be administered by pregnant women. No
data is available on the presence of azaperone in the milk of breastfeeding women.
Breastfeeding women should handle the veterinary medicinal product with extreme
caution.
Wash hands after use.
Revised: March 2023
AN: 02971/2021Page 3 of 7
iii) Other precautions
Not applicable.
hypotensive substances (due to peripheral
- Amplification of tachycardia caused by adrenolytic agents.
- Simultaneous use with α- and substances such as epinephrine
(adrenaline) results in hypotension (“adrenaline reversal”).
excipients.
4.4 Special warnings for each target species
During onset of action treated animals should be left alone in a quiet environment.
Insufficient results may be obtained if the animals are disturbed or chased during the
induction period.
Injection into adipose tissue may lead to apparent insufficient effect.
4.5 Special precautions for use
i) Special precautions for use in animals
Occasional deaths have been observed in Vietnamese Pot Bellied pigs. It is thought
this may be caused by injection into the fat leading to slow induction and tendency to
use additional doses, leading to overdosage. It is important with this breed not to
exceed the stated dose.
If the initial dose does not appear to have an effect, allow complete recovery before
re-injecting on a different day.
ii)Special precautions to be taken by the person administering the
veterinarymedicinal product to animals
Azaperone, sodium metabisulfite, and methyl and propyl parahydroxybenzoate can
cause hypersensitivity reactions. People with known hypersensitivity to azaperone or
any of the excipients should avoid contact with the product.
This product may be irritant to the skin, eyes and oral mucosa. Avoid contact with the
skin, eyes and oral mucosa. Wash any splashes from skin, eyes and oral mucosa
immediately with plenty of water. Seek medical advice if irritation persists.
Accidental self-injection or ingestion may result in sedation. Care should be taken to
avoid accidental self-injection. Only carry this veterinary medicinal product in an
unarmed syringe to avoid accidental injection. In case of accidental self-injection
seek medical advice immediately and show the package leaflet or the label to the
physician. DO NOT DRIVE.
The veterinary medicinal product should not be administered by pregnant women. No
data is available on the presence of azaperone in the milk of breastfeeding women.
Breastfeeding women should handle the veterinary medicinal product with extreme
caution.
Wash hands after use.
Revised: March 2023
AN: 02971/2021Page 3 of 7
iii) Other precautions
Not applicable.
4.6 Adverse reactions (frequency and seriousness)
Pigs:
Undetermined frequency:Increased salivation*, tremor*, panting*
Reversible penile prolapse in boars
*(at high doses). These side effects disappear spontaneously and leave no lasting
damage.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder <or its local representative> or the national
competent authority via the national reporting system. See also the last section of the
package leaflet for respective contact details.
4.7 Use during pregnancy, lactation or lay
The product can be used in pregnant and lactating animals.
4.8 Interaction with other medicinal products and other forms of interaction
- Azaperone has a potentiating effect on all centrally suppressive substances and
hypotensive substances (due to peripheral
- Amplification of tachycardia caused by adrenolytic agents.
- Simultaneous use with α- and substances such as epinephrine
(adrenaline) results in hypotension (“adrenaline reversal”).
4.9 Amount(s) to be administered and administration route
For intramuscular use.
Administer strictly by intramuscular injection, behind the ear. A long hypodermic
needle should be used and the injection given as closely behind the ear as possible
and perpendicular to the skin. There is a risk of injecting part of the drug into the fat,
if heavy animals are injected with a short needle into the neck. In this case, the
injection may have insufficient effect.
Do not administer more than 5 ml per injection site.
Aggressive behaviour (devouring of piglets, re-grouping), obstetrics:
2 mg azaperone/kg body weight, corresponding to 1 ml of the product per 20 kg
body weight
Revised: March 2023
AN: 02971/2021Page 4 of 7
Stress:
- cardiovascular stress
0.4 mg azaperone/kg body weight, corresponding to 0.2 ml of the product per
20 kg body weight
- transport-related stress of piglets, weaners, boars
1 mg azaperone/kg body weight, corresponding to 0.5 ml of the product per 20
kg body weight
- transport-related stress of sows and fattening pigs
0.4 mg azaperone/kg body weight, corresponding to 0.2 ml of the product per
20 kg body weight
Premedication for local or general anaesthesia, nutritional muscular dystrophy:
1-2 mg azaperone/kg body weight, corresponding to 0.5-1 ml of the product per
20 kg body weight
A dose of 1 mg/kg should not be exceeded in boars as a higher dose may cause the
penis to be extruded, which may then be damaged.
The product is injected once-only behind the ear.
After treatment the animal should be left alone in a quiet environment.
An appropriately graduated syringe must be used to allow accurate administration of
the required dose volume. This is particularly important when injecting small volumes.
The rubber stopper may be safely punctured up to 50 times. For multiple vial entry,
an aspirating needle or multi-dose syringe is recommended to avoid excessive
broaching of the stopper.
4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
Aggressive behaviour may occur during awakening in case of overdose.
Repeat dosing in Vietnamese Pot Bellied pigs may result in death due to absorption
of the initial dose in fat.
4.11 Withdrawal period(s)
Meat and offal: 18 days.
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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