AdvertisementA Surge In Meth Use In Colorado Complicates Opioid RecoveryJuly 14, 2018John DaleyfacebookEmailA homeless man in Denver draws heroin into a syringe. Treatment centers in the city say patterns of drug use seem to be changing. While most users once relied on a single drug â typically painkillers or heroin or cocaine â an increasing number now also use meth. (Denver Post via Getty Images)