Tainted Cure. The Rememdium Series, #1

Scientists attempted to find a cure for addiction. They failed. Dr. Everett Berning, a leading researcher into the causes of addiction in the brain, spent ten years of his life dedicated to one thing: finding the cure. Recruited after a strange encounter with the enigmatic Dr. Roberta Flint, Director of Research on Code Name: Rememdium, Dr. Berning is sent to work in a secret lab as part of the research team.
When the moment the scientists waited on for years arrives, Dr. Flint and her team are ecstatic. Unfortunately, not everyone in the world feels the same way. Benito San Nicholas isn't ready to give up his lucrative business. When the news of a cure arrives on his doorstep from a crooked informant, Benito enlists the help of other drug lords from around the world to stop the cure from hitting the streets and destroying their livelihoods.
What happens next ends up uniting the globe--just not the way society ever intended or hoped.