Frequently asked questions about Opioids and Opioid Substitution Treatment including "What are opioids?" "What are the different types of opioids?" "What is opioid dependence?" "What are the goals of OST?" "What forms does OST medication come in?" "Are people on OST intoxicated?" "Why are people on OST for so long?" and "Can OST be used for methamphetamine?"