Katalax Katalax paste is a palatable blend of white soft paraffin, cod liver oil & malt extract that aids in the elimination of hairballs. Directions Administer one inch of the Katalax paste from the tube, once or twice daily. For kittens, half this amount. For fussy cats, smear a small amount of paste on their paw, allowing the cat to lick if off & become accustomed to the taste.