The standard instructions are 5 days consecutive doses for roundworm, although I do another dose at 10 days just to make sure I get any eggs that hatched. And I do egg withdrawal from first dose until 2 weeks after last dose, which might seem excessive but don't want to be eating it.Right, then I do it that one time for round worms. Withdraw eggs for 10 days then do again and wait 10 days for eggs .I have it written down somewhere lol

(I know it's confusing because even the manufacturer has slightly different instructions based on which product you look at.)