POM-V Prescription Required

Ventiquin 25 Microgram/ml Oral Solution for Horses

Active ingredient: Clenbuterol Hydrochloride

Form

Liquid

Species

Horses

Manufacturer

Alfasan Nederland B.V.

VMD MA No.

36408/3052

What it's used for

To relax the uterus in cattle, usually at the time of parturition. In particular: 1. In heifers to delay delivery to allow full preparation of the soft bir...

Full indications, dosage and side effects ↓

View official SPC (PDF)

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Paying less for Clenbuterol Hydrochloride

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.

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Prescription required

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

Clinical information

Ventiquin 25 Microgram/ml Oral Solution for Horses — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

To relax the uterus in cattle, usually at the time of parturition. In particular:
1. In heifers to delay delivery to allow full preparation of the soft birth
canal.
2. As an aid to obstetrical manoeuvres in dystocia, e.g. malpresentation
and malposture.
3. To relax the uterus for Caesarian section.
4. To delay and therefore programme delivery to permit observation of
parturition, e.g. avoidance of night time delivery.
5. To facilitate the replacement of prolapsed uterus.
6. In embryo transfer to ensure less traumatic manipulation of the uterus.

10 ml by slow intravenous as a single injection.

Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
Do not use in horses with cardiac disease.
For use during pregnancy or lactation see section 3.7.

Horses:
Rare
(1 to 10 animals / 10 000 animals
treated):
Tachycardia
;hypotension
;
Lethargy
Very rare
(<1 animal / 10 000 animals
treated,
including isolated reports):
Increased sweating
;
Nervousness
1
Transient.
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 the package leaflet for
respective contact details.

None.

Special precautions for safe use in the target species:
Special precautions should be taken in case of halothane anaesthesia, since the heart
function can show increased sensitivity to catecholamines.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
This veterinary medicinal product contains clenbuterol, a beta-agonist, which may cause
adverse effects such as increased heart rate.
Dermal exposure and accidental ingestion, including hand-to-mouth contact should be
avoided. When using this veterinary medicinal product do not eat, drink or smoke to
avoid accidental intake of the veterinary medicinal product.
To avoid accidental ingestion by or exposure to a child, do not leave the filled syringe
unattended and close the bottle immediately and properly after use.
In case of accidental ingestion, seek medical advice immediately and show the package
leaflet or the label to the physician. Wash hands after use.
This veterinary medicinal product may cause embryotoxicity. Pregnant women should
take care when handling the veterinary medicinal product. Wear gloves to avoid skin
contact.
This veterinary medicinal product may cause hypersensitivity reactions. People with
known hypersensitivity to any of the excipients (parabens, polyethylene glycol and/or
triethanolamine) should avoid exposure to the veterinary medicinal product. In case of
hypersensitivity reactions or if irritation persists, seek medical advice and show the
package leaflet or label to the physician.
This veterinary medicinal product may be irritating to the skin and/or eyes. Avoid skin
and/or eye contact. In case of accidental skin contact, wash skin thoroughly. In case of
accidental eye contact, flush thoroughly with clean water.
Special precautions for the protection of the environment
Not applicable.

Effects including side effects may be enhanced with simultaneous use with
glucocorticoids, ß2-sympathomimetics, anticholinergics and methylxanthines.
The veterinary medicinal product should not be used concomitantly with other
sympathomimetics or vasodilators.
In animals treated with clenbuterol disturbances of the heart rhythm can be expected
upon anaesthesia.
Simultaneous administration of narcotics containing halogens (isoflurane,
methoxyflurane) increases the risk of ventricular arrhythmias.
During the use of both local and general anaesthetics one cannot exclude a further
vascular dilatation and fall of blood pressure, particularly if used in combination with
atropine.
Increased risk of arrhythmia with simultaneous administration of digitalis glycosides.
The veterinary medicinal product can reduce or neutralise the effects of prostaglandin
F2α and oxytocin on the uterus.
Clenbuterol hydrochloride is a agonist and is subsequently neutralised by
β-blockers.

Do not store above 30 °C.
After first opening the immediate packaging do not store above 25°C.

Meat and offal: 28 days.
Not authorised for use in animals producing milk for human consumption.
4.

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.