Research reveals that medicines are frequently not taken as intended, stockpiled for future use, discontinued when symptoms fade or passed to others. Medications are material objects with therapeutic uses that enter into and take on meaning within people's lives. In this way they are culturally embedded phenomena that carry meanings and shape social relationships and practices. The symbolic meanings given to medications and cultural relations are important for understanding variations in medication practices. Households with elders often contain more medications and have more complex age-related medical conditions. In households where members are engaged in the reciprocation of care among two or three generations, medications within and between these relationships take on a range of dynamic meanings. In this paper, we explore how interactions between household members affect medicines-taking practices of elders and their families from three cultural groups: Māori, Tongan and Chinese. Introduction New Zealand society is awash with biotechnologies. Medications take a variety of forms; through prescription, pharmacist-only, pharmacy-only and over the counter, and extending to alternative or complementary products such as homeopathic and "natural remedies", and dietary supplements. Their use is complex and often problematic; many substances are wasted, used for other purposes or given to other people without prescription or medical advice. Overall adherence to recommended medication regimes is only around 50 per cent (Haynes, McKibbon & Kanani, 1996; PHARMAC, 2006), and varies according to factors such as type of illness, number of medicines taken, socio-economic status and the meanings people attach to these objects (van der Geest, 2006). The New Zealand Medical Council guidelines advise doctors to be "mindful of their patients' cultural beliefs, mores, and behaviours. Awareness of the traditional medicines patients may be taking alongside their prescribed treatment may play an important role in providing quality care and avoiding adverse interactions" (Poynton, Dowell, Dew & Egan, 2006, p. 8). When medications are taken home, or prepared in the home, they enter into the social space of the home, into social relationships and take on social meanings, and can reshape relations, identities, moralities and routines (Lefebvre & Nicholson-Smith, 2007; Sointu, 2006; Yanchar, Gantt & Clay, 2005). The symbolic meaning of medications exceeds their materiality as things in a physical world. Medications are invested with history and tradition, and often crystallise connections with people, places and events. The places people dwell in and the things they collect become part of them, and crystallise aspects of who they are, want to be and show to others (Noble, 2004).