Iso, a Dangerous New Synthetic Opioid Causing OD’s

Isotonitazene, known as "iso" to drug users, is a dangerous new opioid that causes overdose deaths across the country in the US. As many as 40-50 people every month are dying after getting ahold of this potent drug. Iso is not a legal drug, but its origins are still in the pharmaceutical industry.  The formulation