Solantel 50mg/ml Oral Suspension for Sheep
Active ingredient: Closantel
Form
Liquid
Species
Manufacturer
Norbrook Laboratories Limited
VMD MA No.
02000/4402
What it's used for
For the treatment of Oestrus ovis (Sheep Nasal Bot Fly). For the treatment of inhibited, L4 and adult stages of Haemonchus contortus.
Full indications, dosage and side effects ↓The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.
Paying less for Closantel
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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.
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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.
Solantel 50mg/ml Oral Suspension for Sheep — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
For the treatment of inhibited, L4 and adult stages of Haemonchus contortus.
dosage rate is 10 mg of closantel per kg bodyweight (i.e. 1 ml of the veterinary
medicinal product per 5 kg bodyweight).
For example:
Bodyweight Dose
Up to 5 kg 1 ml
10 kg 2 ml
20 kg 4 ml
30 kg 6 ml
40 kg 8 ml
50 kg 10 ml
60 kg 12 ml
70 kg 14 ml
80 kg 16 ml
To ensure a correct dosage, bodyweight should be determined as accurately as
possible; accuracy of the dosing device should be checked. If animals are to be
treated collectively rather than individually, they should be grouped according to
their body weight and dosed accordingly in order to avoid under- or over-dosing.
AN: 01698/2025 & 01699/2025
The timing for treatment should be based on epidemiological factors and should be
customised for each individual farm. As with other anthelmintics, veterinary advice
should be sought on appropriate dosing programmes and stock management to
achieve adequate parasite control and reduce the likelihood of resistance
developing.
Suitable for use with most types of standard drenching equipment.
Shake well before use.
excipients.
AN: 01698/2025 & 01699/2025
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 the national competent authority via
the national reporting system. See the package leaflet for respective contact details.
of development of resistance and could ultimately result in ineffective therapy:
•
extended period of time.
•
misadministration of the veterinary medicinal product, or lack of calibration of the
dosing device (if any).
Suspected clinical cases of resistance to anthelmintics should be further
investigated using appropriate tests (e.g. Faecal Egg Count Reduction Test). Where
the results of the test(s) strongly suggest resistance to a particular anthelmintic, an
anthelmintic belonging to another pharmacological class and having a different
mode of action should be used.
Resistance to closantel has been reported in Haemonchus species outside the EU.
The use of this veterinary medicinal product should be based on local (regional,
farm) epidemiological information about susceptibility of nematodes and
recommendations on how to limit further selection for resistance to anthelmintics.
Special precautions for safe use in the target species:
When using a drenching gun, take care not to injure the mouth or pharynx.
Do not exceed the stated dose.
The veterinary medicinal product can be used in all age groups of sheep and
lambs.
Special precautions to be taken by the person administering the veterinary
medicinal product to animals
This veterinary medicinal product may be irritating to skin and eyes and users
should be careful not to accidentally splash it on themselves or others.
In case of accidental spillage onto skin or into eyes, rinse the affected area with
large amounts of clean water. If irritation persists, seek medical advice immediately
and show the package leaflet or label to the physician.
Personal protective equipment consisting of nitrile rubber gloves should be worn
when handling the veterinary medicinal product.
Wash hands after use.
Do not eat, drink or smoke while handling the veterinary medicinal product.
Special precautions for the protection of the environment:
Closantel is very toxic to dung fauna.
The risk to dung fauna can be reduced by avoiding too frequent and repeated use
of closantel (and veterinary medicinal products of the same anthelmintic class) in
AN: 01698/2025 & 01699/2025
sheep and lambs. Animals should not normally be treated in excess of three times a
year with closantel.
Keep the container in the outer carton in order to protect from light.
Store upright in the original container.
Protect from cold.
Shake well before use.
Not authorised for use in ewes producing milk for human consumption including
during the dry period. Do not use within 1 year prior to the first lambing in ewes
intended to produce milk for human consumption.
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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Other Products Containing Closantel
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Closamectin 5 mg/ml + 200 mg/ml Pour-on Solution for Cattle
POM-VPSNorbrook Laboratories Limited
Closamectin 5 mg/ml + 200 mg/ml Pour-on Solution for Cattle
POM-VPSNorbrook Laboratories Limited
Closamectin 5 mg/ml/125 mg/ml Solution for Injection for Sheep
POM-VPSNorbrook Laboratories Limited
Closamectin Solution for Injection for Cattle
POM-VPSNorbrook Laboratories Limited
Closamectin Solution for Injection for Cattle
POM-VPSNorbrook Laboratories Limited
Closiver 5 mg/ml + 125 mg/ml Solution for Injection for Sheep
POM-VPSNorbrook Laboratories Limited
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