They have taken Valbazen, and have just repackaged it in a smaller amount. It is the same cattle/sheep wormer as one would find in a feed store. The dosage undiluted is 1/2 ml for most standard chickens or 1/4 ml for a bantam.
Correct. No need to dilute Valbazen, it's a safe wormer. Besides, it's easier to administer 1/2cc orally rather than 2cc's orally (diluted) to each chicken.