If any of you want to eat the eggs while treating large roundworms or cecal worms you can if you give the correct dose of Safeguard. Here is a thread that explains how:
https://www.backyardchickens.com/threads/safeguard-mash-zero-day-egg-withdrawal.1254653/
Otherwise, the amounts my vet has use are:
Large roundworms - 0.23 ml per pound orally once and repeat in 10-14 days
Cecal worms - 0.23 ml per pound orally once and repeat in 10-14 days
Capillary worms and gapeworms require treatment for 5 consecutive days.