Dsuvia, which is delivered as a pill that is smaller than a Tic Tac, is a close chemical relative of fentanyl. A Drug Enforcement Administration scientist recently testified that it is 1,000 times stronger than morphine. Brown’s opposition to Dsuvia was based on the belief that approving this new drug, amid a nationwide opioid epidemic, would lead to more addictions and deaths. The FBI warning about Dsuvia was dire. “Because of its potency, Dsuvia likely will cause deaths at a rate surpassing that associated with fentanyl, increasing the overall opioid-related death rate in the near term,” said the bulletin, which was obtained by Yahoo News and has not previously been made public.