POM-V Prescription Required

CIDR OVIS 0.35 g Vaginal Delivery System for Sheep

Active ingredient: Progesterone

Form

Vaginal delivery system

Species

Sheep

Manufacturer

Zoetis UK Limited

VMD MA No.

42058/5118

What it's used for

For the induction and synchronization of oestrus and ovulation in non-cycling ewes during seasonal anoestrus. For the induction and synchronization of oest...

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 Progesterone

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

CIDR OVIS 0.35 g Vaginal Delivery System for Sheep — SPC Details

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

For the induction and synchronization of oestrus and ovulation in non-cycling ewes
during seasonal anoestrus.
For the induction and synchronization of oestrus and ovulation in cycling and in non-
cycling ewes for advancing the breeding season.
To be used in combination with eCG (equine chorionic gonadotrophin).

Do not use in sexually immature ewes or in females with abnormal genital tracts.
Do not use in animals presenting with infectious or non-infectious diseases of the
genital tract.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
See section 4.7

Sheep:
I
II
treated):
III
, vaginal discharge
(cloudy/yellow mucus)
IV
V
animals treated):
VI
(dark red/brown mucus
with fresh blood)

Revised: March 2024
AN: 03621/2022
typically resolve within 2 days of removal of the device without the need for
treatment.
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 section ’Contact
details’ of the package leaflet.

None.

Revised: March 2024
AN: 03621/2022

Special precautions for use in animals
The efficacy and safety of the veterinary medicinal product has not been evaluated in
ewes which are unwell, which have a BCS < 2 or
during previous pregnancies or lambings, or which have lambed within the last 45 days.
Use only according to the benefit/risk assessment by the responsible veterinarian.
Animals in poor condition, whether from illness, inadequate nutrition, or other factors,
may respond poorly to treatment.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
Progesterone is a potent steroid hormone and may cause adverse effects on the
reproductive system in cases of high or prolonged exposure.
As adverse effects on unborn children cannot be ruled out, pregnant women should
avoid using this veterinary medicinal product.
The veterinary medicinal product may cause skin and eye irritation, as well as allergic
skin rashes. Avoid accidental contact with the eyes. In case of accidental ocular
exposure, flush the eyes thoroughly with water.
Persons administering the veterinary medicinal product should avoid contact with the
silicone section; pregnant women should avoid using the veterinary medicinal product.
The device should be inserted using the product specific applicator. Personal protective
equipment consisting of gloves should be worn when handling the veterinary medicinal
product during insertion and removal.
Wash hands and exposed skin with soap and water after use.
Do not smoke, eat or drink while handling the veterinary medicinal product.
Special precautions for the protection of the environment
Not applicable.
Other precautions
Not applicable.

None known.

Do not store above 30 °C.

horizontally until some resistance is encountered.

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.