‘It’s a different beast’: US fentanyl deaths will rise, warns Narcan developer

Overdose crisis that killed over 100,000 Americans in one year is all about fentanyl', says Roger Crystal of Opiant Pharmaceuticals

Deaths from fentanyl will continue to rise and overdoses may be increasingly difficult to battle in the US, said Roger Crystal, who helped develop Narcan nasal spray, an easy-to-use medication that reverses overdoses.

The overdose crisis that killed more than 100,000 Americans in one year is all about fentanyl", Crystal said - and it's only going to get worse.