Questioning a state's investigation is highly unusual for the public health agency, but reflects tensions between the Trump administration and many states over health issues.
Rasonque, the new pancreatic cancer treatment from Revolution Medicines, illustrates the huge inflation in cancer drug prices over the past two decades.
Farm Adventures of Harmony, N.C., owned the goats, state health officials said. It was unclear how many people might have been exposed to them since late July.
The resolution is part of an effort to hold retailers and pharmacists accountable for what the government says were their roles in the opioid epidemic.