Mental Health IssuesSubstance AbuseTeens / AdolescentsTherapeutic ModalitiesTreatment Options How Long Does Heroin Stay In Your System? Heroin is a highly addictive, illegal, rapidly acting opiate that is derived from morphine. Morphine is synthesized from the seeds of the opium poppy plant, which is why heroin is classified as an opiate. Heroin…upwellstgFebruary 9, 2022
