Hiya Joanne,
I found this info and here's a link to the whole document
http://www.ruma.org.uk/guidelines/anthelmintics/RUMA%20Pig%20Anthelmintics_pigs_Long_2010.pdf"Treatment of Liver Fluke
Liver fluke is not commonly seen in pigs and no licensed medication is
specifically available for the treatment of pigs in the UK. Where fluke is
diagnosed it is therefore necessary to use a flukicide product ‘off-license’
under the cascade rule. Only a veterinary surgeon can make such
recommendation and prescribe. For practical purposes it is preferable to use an
injectable product (rather than a drench).
Options include:
Ivomec Super Injection (Merial Animal Health) – a combination of 1%
ivermectin and 10% clorsolon. This should be given at a dose rate of
1ml/33kg by subcutaneous injection and has the advantage of treating all
worm parasites and mange mites. However the flukicide component is
only effective against mature fluke. As use is off-license, the standard
withdrawal period of 28days would apply; however the licensed
withdrawal period for cattle is 35 days and as such this extended period
should apply in pigs
Trodax 34% (Merial Animal Health) containing nitroynil. Applying the
ruminant dosage of 10mg/kg by subcutaneous injection, treatment of
immature fluke as well as mature forms is possible. Caution should be
exercised in treating pregnant sows. A 60 day meat withdrawal period
should apply.
A range of oral preparations based upon triclabendazole are available for
ruminants and can be used under veterinary direction for treating mature
and immature fluke infestation in pigs. As most products have licensed
withdrawal periods in excess of 28days, these extended withdrawal periods
should be applied.
In all cases it may be necessary to repeat treat four to eight weeks later,
and to remove the pigs from the source of contamination."
Hope that helps a bit ?
Karen x