There is a risk of secondary poisoning with TakeDown II Soft Bait. However, a dog would need to consume 15% of his body weight of TakeDown II Soft Bait via a poisoned rodent for it to be fatal. Typically, pets do not "eat" dead rodents, instead they see them as a toy and tend to play with them rather than consume them.
The Take Down II was reformulated to stay soft even in colder temperatures. The active ingredient and concentration in Take Down and Take Down II is Bromethalin .01%