For the treatment and prevention of infestations by lice and flies on cattle; ticks, lice, keds and established blowfly strike on sheep and lice and ticks on lambs.

On cattle: For the treatment and prevention of infestations by both sucking and biting lice, includingBovicola bovis, Solenopotes capillatus, Linognathus vituli and Haematopinus eurysternus in beef and dairy cattle. Also as an aid in the treatment and prevention of infestations of both biting and nuisance flies including Haematobia irritans, Stomoxys calcitrans, Musca species and Hydrotaea irritans.

On sheep: For the treatment and prevention of infestations by ticks Ixodes ricinus and by lice (Linognathus ovillus, Bovicola ovis), keds (Melophagus ovinus) and established blowfly strike (usuallyLucilia spp).

On lambs: For the treatment and prevention of infestations by ticks Ixodes ricinus and by lice Bovicola ovis.

Dosage & Administration
Dose:
Cattle: 100 mg of deltamethrin per animal corresponding to 10 ml of product.
Sheep: 50 mg of deltamethrin per animal corresponding to 5 ml of product
Lambs (under 10 kg bodyweight or 1 month of age): 25 mg of deltamethrin per animal corresponding to 2.5 ml of product.

Administration:
It is advisable to:
- treat shortly after shearing (animals with short fleece),
- keep treated sheep separated from untreated sheep to avoid re-infestation.

N.B. For treatment and prevention of infestations by ticks, keds and lice on sheep, the fleece should be parted and the Spot-On applied to the skin of the animal.

Lice and ticks on lambs: Application to the mid-point of the shoulders will provide treatment and preventatino of infestations by ticks for up to 6 weeks after treatment, and will reduce the incidence of biting lice over a 4-6 week period treatment.

Withdrawal Period 
Cattle:
Meat and offal: 17 days
Milk: zero hours

Sheep:
Meat and offal: 35 days
Milk: Not authorised for use in ewes producing milk for human consumption.

Contraindictions, Warnings etc
Do not use on convalescent or sick animals.
Do not use in cases of known hypersensitivity to the active substance or any of the excipients.
Extra-label use of the product in the non-target species dogs and cats can lead to toxic neurological signs (ataxia, convulsions, tremors), digestive signs (hypersalivation, vomiting) and may be fatal

Please see below link to the Veterinary Medicines Product Information Database
http://www.vmd.defra.gov.uk/productinformationdatabase/Default.aspx