Moreover, data on women drug users are sparse, further complicating analysis. For those reasons, the present chapter is limited to some salient aspects: drug-related harms, special populations, prevention and treatment, and rehabilitation for drug dependence. Drug-dependent women may face many difficulties: they can experience high levels of stigmatization, they can be ostracized by their family or community, they may be subjected to violence from partners or family members, and they may turn to, or be coerced into, sex work to support their drug use or that of their partner.