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POM-V Prescription Required

Prascend 1 mg Tablets for Horses

Active ingredient: Pergolide

Form

Tablet

Species

Horses

Manufacturer

Boehringer Ingelheim Vetmedica GmbH

VMD MA No.

04491/3034

What it's used for

Symptomatic treatment of clinical signs associated with Pituitary Pars Intermedia Dysfunction (PPID) (Equine Cushing’s Disease).

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

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Paying less for Pergolide

  1. 1

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

  2. 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.

Prescription required

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

Clinical information

Prascend 1 mg Tablets for Horses — SPC Details

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

Symptomatic treatment of clinical signs associated with Pituitary Pars Intermedia
Dysfunction (PPID) (Equine Cushing’s Disease).
AN: 01122/2025Page 4 of 7
The veterinary medicinal product should be administered, once daily.
To facilitate administration, the required daily dose should be placed in a small amount
of water and/or mixed with molasses or other sweetener and agitated until dissolved. In
this case, the dissolved tablets should be administered with a syringe. The whole
amount should be administered immediately. Tablets should not be crushed. Do not use
the veterinary medicinal product if you notice visible signs of deterioration or if the
blister is breached.
Starting dose
The starting dose is 2 µg pergolide/kg (dose range: 1.3 to 2.4 µg/kg) body weight.
Studies from the published literature cite the most common, average dose as 2 µg
pergolide/kg with a range from 0.6 to 10 µg pergolide/kg (0.25 to 5 mg total daily dose
per horse). The starting dose (2 µg pergolide/kg) should then be titrated according to
the individual response as determined by monitoring (see below).
Starting doses are recommended as follows:
Horse body weightNumber of tabletsStarting doseDosage range200 - 400 kg½0.5 mg1.3 - 2.5 μg/kg401 - 600 kg11.0 mg1.7 - 2.5 µg/kg601 - 850 kg1 ½1.5 mg1.8 - 2.5 µg/kg851 - 1000 kg22.0 mg2.0 - 2.4 µg/kg
Maintenance dose
Life long treatment is anticipated for this disease.
Most horses respond to therapy and are stabilised at an average dose of 2 µg
pergolide/kg body weight. Clinical improvement with pergolide is expected within 6 to 12
weeks. Horses may respond clinically at lower or varying doses; it is therefore
recommended to titrate to the lowest effective dose per individual based on response to
therapy, whether it is effectiveness or signs of intolerance. Some horses may require
doses as high as 10 µg pergolide/kg body weight per day. In these rare situations,
appropriate additional monitoring is advised.
Following initial diagnosis, repeat endocrinologic testing for dose titration and
monitoring of treatment at intervals of 4 to 6 weeks until stabilisation or improvement of
clinical signs and/or diagnostic testing occurs.
Clinical signs are: hypertrichosis, polyuria, polydipsia, muscle wasting, abnormal fat
distribution, chronic infections, laminitis, sweating, etc.
The approach to treatment is the dose titration to the lowest effective dose per
individual, based on response to therapy, whether it is effectiveness or signs of
intolerance. Depending on the severity of the disease, time to treatment response may
vary among individuals.
If clinical signs or diagnostic testing have not yet improved at the first 4 to 6 week
interval, the total daily dose may be increased by 0.5 mg. In case clinical signs have
improved but are not yet normalised, the veterinarian may decide to titrate or not to
titrate the dose, considering the individual’s response/tolerance to the dose.
In case clinical signs are not adequately controlled (clinical evaluation and/or diagnostic
testing) it is recommended to increase the total daily dose by 0.5 mg increments every 4
to 6 weeks until stabilisation occurs and if the drug is tolerated at that dose.
AN: 01122/2025Page 5 of 7
If signs of dose intolerance develop, treatment should be stopped for 2 to 3 days and
reinstated at one-half of the previous dose. The total daily dose may then be titrated
back up to the desired clinical effect by 0.5 mg increments every 2 to 4 weeks. If a dose
is missed, the next scheduled dose should be administered as prescribed.
Following stabilisation, regular clinical assessment and diagnostic testing should be
performed every 6 months to monitor treatment and dose. Where there is no apparent
response to treatment, the diagnosis should be re-evaluated.
Do not use in cases of hypersensitivity to the active substance or other ergot derivatives
or to any of the excipients.
Do not use in horses less than 2 years of age.
Horses (non food-producing):
Rare
(1 to 10 animals / 10,000 animals
treated):
Inappetence; anorexia
; lethargy
Central nervous system disorder (e.g.,
central nervous system depression and
ataxia)
Diarrhoea; colic
Very rare
(< 1 animal / 10,000 animals treated,
including isolated reports):
Sudation
Transient
Mild
If signs of dose intolerance develop, treatment should be stopped for 2 to 3 days and
reinstated at one-half of the previous dose. The total daily dose may then be titrated
back up to the desired clinical effect by 0.5 mg increments every 2 to 4 weeks.
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.
Appropriate endocrinologic laboratory tests should be conducted as well as evaluation
of clinical signs in order to establish a diagnosis of PPID.
AN: 01122/2025Page 2 of 7

Special precautions for safe use in the target species:
As the majority of cases of PPID are diagnosed in aged horses, other pathological
processes are frequently present. For monitoring and frequency of testing, see section
3.9.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Pergolide, like other ergot derivatives, may cause emesis, dizziness, lethargy or low
blood pressure.
Severe adverse events such as collapse have been observed. Ingestion may be
harmful and associated with severe adverse events, especially in children or people
with pre-existing heart conditions. Do not ingest this veterinary medicinal product.
In order to reduce the risk of accidental ingestion:
- Store and handle this veterinary medicinal product separately away from human
medicinal products and handle it with great care.
- Tablets prepared for administration should be administered immediately and not
left unattended.
In case of accidental ingestion, seek medical advice immediately and show the package
leaflet or the label to the physician. Avoid driving or operating machinery following
ingestion of this veterinary medicinal product.
Children should not come into contact with the veterinary medicinal product.
This veterinary medicinal product may cause eye irritation, an irritating smell, or
headache after splitting. Minimise exposure risks when splitting tablets. Tablets should
not be crushed. Avoid contact with the eyes and inhalation when handling the tablets.

People with known hypersensitivity to pergolide or other ergot derivatives should avoid
contact with the veterinary medicinal product and should not administer it.
Pregnant or lactating women should wear gloves when administering the veterinary
medicinal product.
In case of contact with skin, wash exposed skin with water. In the event of pergolide
exposure to the eye, flush the affected eye immediately with water and get medical
advice. For nasal irritation, move to fresh air and seek for medical attention if breathing
difficulty develops.
Wash hands after use.
Special precautions for the protection of the environment
Not applicable
AN: 01122/2025Page 3 of 7
Use with caution in case the veterinary medicinal product is co-administered with other
drugs known to affect protein binding.
Do not administer concurrently with dopamine antagonists, such as neuroleptics
(phenothiazines - e.g. acepromazine), domperidone, or metoclopramide, as these
agents may reduce the effectiveness of pergolide.
Do not store above 25°C.
Keep the blister in the outer carton
weight per day.
Lactation:
The use is not recommended in lactating horses, in which the safety of this veterinary
medicinal product has not been demonstrated. In mice, reduced body weights and
survival rates in the progeny were attributed to the

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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