SIGRE, or "Medicamento y Medio Ambiente," is a pioneering initiative led by the Spanish pharmaceutical industry in collaboration with pharmacies and distribution networks. It is designed to facilitate the responsible disposal of empty medication containers, leftover medications, and expired pharmaceuticals that accumulate in households. The organization aims to tackle both environmental and health challenges. Environmentally, it focuses on minimizing the negative impacts of pharmaceutical waste by preventing waste generation and ensuring proper management of generated wastes. On the health front, SIGRE seeks to raise awareness about the dangers of storing unused medications and encourages safe practices among citizens.

Through educational efforts, SIGRE provides valuable guidance on recycling and eco-friendly practices, helping to reduce the carbon footprint associated with pharmaceutical waste. Their commitment to sustainability not only protects the environment but also promotes public health, making SIGRE a key player in Spain's efforts to foster a more responsible approach to medication disposal.