Trifexis and Nursing Dog?

I was recently out of town for work and our regular dog sitter administered Trifexis to our nursing dog. As soon as we were told this, we had her separate momma dog from the puppies, as we were told by our vet that it was not safe for pregnant/nursing dogs. The puppies are 7 1/2 weeks old and are eating puppy food... show more I was recently out of town for work and our regular dog sitter administered Trifexis to our nursing dog. As soon as we were told this, we had her separate momma dog from the puppies, as we were told by our vet that it was not safe for pregnant/nursing dogs. The puppies are 7 1/2 weeks old and are eating puppy food 3 times a day, but would still occasionally nurse. My question is, should the puppies remain apart from the mom for a few days? Will they be able to nurse from her any time soon, should we just monitor them to make sure they aren’t nursing from her and separate them at night? Thank you!
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