Eqvalan Gold has the same amount of praziquantel as Zimectrin Gold. The dosage is in post 5 here by @casportpony who may want to chime in with the amount in ml:
https://www.backyardchickens.com/threads/tape-worms.1246090/
https://www.backyardchickens.com/threads/tape-worms.1246090/