Levafas Diamond Oral Suspension

Care should be taken to avoid the following practices because they increase
the risk of development of resistance and could ultimately result in ineffective
therapy:
•
an extended period of time.
•
misadministration of the 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 levamisole has been reported in Teladorsagia,
Trichostrongylus species in sheep in a number of countries, including the EU.
There are reports of resistance in Haemonchus in sheep outside the EU.
Resistance to levamisole has been reported in Teladorsagia species in cattle in
developed countries such as New Zealand. Therefore the use of this 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.
Veterinary advice should be sought on appropriate dosing programmes and
stock management to achieve adequate parasite control and reduce the
likelihood of anthelmintic resistance developing.
Do not exceed the recommended dosage.

i. Special precautions for use in animals
Care should be taken to estimate accurately the liveweight of animals to
be treated. Animals should be dosed according to their individual weight,
and not dosed as per the heaviest animal in the group, otherwise signs
of overdose may occur (see section 4.10). It is important that the
container is shaken thoroughly before use to ensure that the two active
substances are homogeneously resuspended and therefore the animals
receive the correct dose.
ii. Special precautions to be taken by the person administering the
veterinary medicinal product to animals
Do not eat, drink or smoke when using this product. Wash splashes
from eyes and skin immediately. If irritation persists seek medical

Revised: April 2023
AN: 03462/2022
advice. Remove any contaminated clothing immediately. Wash hands
and exposed skin after handling this product, and before meals.
Levamisole can cause idiosyncratic reactions and serious blood
disorders in a very small number of people. If symptoms such as
dizziness, nausea, vomiting or abdominal discomfort are experienced
when using this product, or sore mouth/throat or fever occur shortly
afterwards, then medical advice should be sought immediately.