Cattle

For the treatment of mixed trematode and nematode or arthropod infestations, due to adult and immature roundworms, lungworms, warbles, mites, lice and liver fluke in cattle.

Gastro-intestinal roundworms (adult and fourth-stage larvae):

Ostertagia ostertagi (including inhibited larval stages)

Strongyloides papillosus (adult)

Nematodirus helvetianus (adult)

Nematodirus spathiger (adult)

Lungworms (adult and fourth-stage larvae):

Liver fluke (adult):

Warbles (parasitic stages):

The product may also be used as an aid in the control of the mange mite Chorioptes bovis, but complete elimination may not occur.

Do not use in non-lactating dairy cows including pregnant heifers within 60 days of calving.

Not for use in species other than cattle as severe adverse reactions, including fatalities, may occur in dogs for example.

Do not use by the intravenous or intramuscular route.

Do not use in animals known to be hypersensitive to the active substance.

Care should be taken to avoid the following practices because they increase the risk of the development of resistance and could ultimately result in ineffective therapy:

•Too frequent and repeated use of anthelmintics from the same class, over an extended period of time.

•Underdosing, which may be due to underestimation of body weight, 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 macrocyclic lactones (which includes ivermectin) has been reported in Ostertagia ostertagi and Cooperia spp, in cattle within the EU. 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.

Divide doses greater than 10 ml between two injection sites to reduce occasional discomfort or site reaction.

The timing of treatment for the parasitic stages of warbles should be chosen carefully. The best time to treat against infections with Hypoderma is immediately after the end of the swarming of the warbles, before the larvae cause damage in the body of the animal (October to November). If larvae of Hypoderma bovis are killed during migration through the spine, this may induce posterior paralysis and recumbency. These reactions occur mainly when animals are treated between December and March.

Avermectins may not be well tolerated in non-target species. Cases of intolerance resulting in fatalities have been reported in dogs, especially Collies, Old English Sheep Dogs and related breeds or crosses, and also in turtles/tortoises.

Do not eat, drink or smoke while handling the product.

Wash hands after use.

Avoid contact with skin and eyes.

Take care to avoid accidental self-injection: the product may cause irritation and/or pain at the site of injection. In case of accidental self-injection, seek medical advice and show the label to the doctor.

Ivermectin is highly toxic to aquatic invertebrates. Treated cattle should not have direct access to ponds, streams or ditches for 14 days after treatment to avoid adverse effects on aquatic organisms.

Transitory discomfort has been observed in some cattle following subcutaneous administration. Soft-tissue swelling and/or slight pain at the injection site has also been observed. These reactions have disappeared without treatment.

In case of hypersensitivity reactions a symptomatic treatment should be applied.

Do not use in animals producing milk for human consumption.

Do not use in non-lactating dairy cows including pregnant heifers within 60 days of calving.

Not known.

The product should be given once by subcutaneous injection at the recommended dosage level of 200 µg of ivermectin and 2 mg of clorsulon per kilogram of bodyweight. Each ml contains 10 mg of ivermectin and 100 mg of clorsulon, sufficient to treat 50 kg of bodyweight. Subcutaneous injection only.

To ensure administration of a correct dose, 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 bodyweight and dosed accordingly, in order to avoid under- or over-dosing.

Divide doses greater than 10 ml between two injection sites.

Inject under the loose skin behind the shoulder. Use of a 17-gauge, ½-inch (15- 20 mm) needle is suggested. The injection may be given with any standard automatic, multidose or single-dose hypodermic syringe. If using a hypodermic syringe, use a separate sterile needle to withdraw the dose from the pack.

This product does not contain an antimicrobial preservative. Swab septum before removing each dose. Use a dry, sterile needle and syringe.

For 200, 500 and 1000-ml pack sizes, use only automatic-syringe equipment.

Injection on animals with wet or dirty hides is not recommended.

When the temperature of the product is below 5 °C, difficulty in administration may be encountered due to increased viscosity. Warming the product and injection equipment to about 15 °C will greatly increase the ease with which the product can be injected. Different injection sites should be used for other parenteral products.

The timing for treatment should be based on epidemiological factors and should be customised for each individual farm. A dosing programme should be established by the veterinary surgeon.

An acute toxic syndrome consisting of CNS signs of depression and listlessness, ataxia, recumbency and possible death occurs in cattle given S.C. doses equal to 40 times the therapeutic dose for ivermectin. Treatment should be symptomatic.

A toxic-syndrome dose level has not been identified in cattle for clorsulon.

Meat and offal: 66 days,

Milk: Do not use in animals producing milk for human consumption. Do not use in non-lactating dairy cows including pregnant heifers within 60 days of calving.