lubendazole 5%: White powder containing flubendazole 5 % w/w (50 mg/g) in a 600 g tub.

Flubendazole is a broad spectrum anthelmintic for oral administration, effective against mature and immature stages of the following nematodes of the gastro–intestinal tract of the pig: 
Ascaris suum (Large roundworm) including migrating larvae Hyostrongylus rubidus (Red stomach worm)
Oesophagostomum dentatum (Nodular worm)
Trichuris suis (Whipworm) 
Strongyloides ransomi (Threadworm - adult)

Dosage & Administration 
To ensure administration of a correct dose, body weight should be determined as accurately as possible.
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 overdosing.

Individual treatment (Single administration): Add 1 g of Flubenol for each 10 kg bodyweight onto the finished feed, as a single animal dose. (This is equivalent to 5 mg of flubendazole per one kg bodyweight). One 13 g measuring spoon treats one 130 kg sow.

Treatment frequency: Twice a year unless recommended otherwise by a veterinary surgeon. Pigs brought onto the premises should be treated on arrival and before mixing with other animals. Regular faecal examination is advocated to know which worms are present on the farm so that specific measures may be taken to prevent re-infection.

Treatment of clinical worm infestations: Treat relevant infestations at intervals shown below:
Nodular worm: every 2 months.
Large roundworm: every 2 months.
Red stomach worm: every month.
Whipworm: every 6 weeks. 

Withdrawal Period 
Meat and Offal: 7days  
Pigs must not be slaughtered for human consumption during treatment.

Contraindictions, Warnings etc
Do not use in case of hypersensitivity to the active substance or to any of the excipients.  

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