Valbazen SC 2.5% Total Spectrum Wormer Oral Suspension Uses A broad-spectrum multi-purpose anthelmintic for the control of the following types of benzimidazole susceptible mature and immature internal parasites in sheep: Gastro-intestinal roundworms: Mature and developing immature forms of Ostertagia, Haemonchus, Trichostrongylus, Nematodirus (including N. battus), Chabertia and Oesophagostomum spp. It is usually effective against inhibited larvae of benzimidazole susceptible Ostertagia. Lungworms: Dictyocaulus filaria. Tapeworms: Moniezia spp. Adult liver fluke: Fasciola hepatica. Valbazen is ovicidal and will kill worm and fluke eggs, thus reducing pasture contamination.