Long term effects of methadone include lung and respiration. The effect of methadone on women is it can mess up their menstrual cycle and and pregnancy can be affected if taken while pregnant
Methadone effects people in communities by domestic violence in families, and in other people's homes if not aware of what house they're in, if some people aren't in the right state of mind and driving, they start hallucinating and could possibly seriously injure someone or kill them if not paying properly paying attention to the road.