Symphony of planetary health and prescription medicine for a sustainable future

Introduction The intersection of planetary health and prescription medicine has become a critical focal point as we confront the environmental consequences of our pharmaceutical practices. Planetary health, which emphasizes the interconnectedness of human health and the health of our planet, is urgently needed in our current situation. The impacts of prescription medicine on the environment are multifaceted and alarming, requiring immediate and sustained action. The Current Situation Prescription medicines, while essential for treating various ailments and improving the quality of life, have unintentionally contributed to significant environmental harm. This issue manifests in several ways: Manufacturing Impacts: The pharmaceutical industry’s manufacturing processes often involve the destruction of natural resources, significant greenhouse gas emissions, and pollution of water and soil. The extraction of raw materials and the production of drugs release various pollutants, contributing to climate change and environmental degradation.[1] Pharmaceutical Impacts: Active pharmaceutical ingredients (APIs) are increasingly being detected in water bodies and soil around the world. These substances, including hormones, antibiotics, and analgesics, can disrupt aquatic ecosystems and potentially enter human water supplies.[1] Antibiotic Resistance: The overuse and improper disposal of antibiotics have accelerated the development of antibiotic-resistant bacteria. This presents a severe threat not only to human health but also to agricultural practices and natural ecosystems.[2] Microplastic Impacts: Drugs contribute to microplastic contamination either through their own physical breakdown or by acting as carriers of microplastics used drug formulations. These particles are pervasive in the environment and can have detrimental effects on wildlife and human health.[3] The environmental impact of prescription medicine began to draw attention in the latter half of the 20th century, but it wasn’t until the early 2000s that comprehensive studies highlighted the extent of pharmaceutical pollutants in the environment. The discovery of synthetic oestrogens from contraceptives affecting fish populations was a significant wake-up call. In a nutshell, the current healthcare practices are resulting in “Pharmaceutical Contamination” which is further having an impact on the planetary health jeopardising progress towards SDG (Sustainable Development Goals). Pharmaceutical Contamination This concept encompasses the entire lifecycle of pharmaceuticals, from production to disposal, and their persistent presence in the environment, has become a significant global concern. Residuals from medications are increasingly found in water supplies, soil, and wildlife, primarily due to improper disposal and agricultural runoff. One of the significant aspects being improper disposal of the medicines which are found to be capable of disrupting ecosystems, affecting the health of aquatic life, and contributing to antibiotic resistance. Efforts to address this issue include improving waste management systems, advancing water treatment technologies, and raising public awareness about proper disposal methods, especially of the expired medicines. Different countries have come up with different strategies for the safe disposal of expired medicines. In the 1990s the US Army conducted a study called ‘Shelf Life Extension Program (SLEP)’, to determine if the medications stockpiled for emergency situations remained effective even after their expiration dates.[4] Surprisingly, when stored in optimal conditions many of the drugs were found to retain their efficacy. However the findings are not generalisable especially to a tropical country like ours. Additionally, the US government promotes take-back programs where individuals can return unused medications to designated locations for safe disposal, whereas in many European countries there are strict policies requiring the pharmacies to accept unused medications for proper disposal, incineration or recycling based on the manufacture label. Countries like Sweden and Germany have developed advanced waste management systems which treat pharmaceuticals as hazardous waste, thus reducing their environmental impact. Despite these measures, the pervasive nature of pharmaceutical contamination underscores the need for continued research and stricter regulatory policies.[5] Key Mitigation Strategies Sustainable Manufacturing Practices: Implementing greener processes in drug production to minimize environmental impact. Proper Disposal: Developing and promoting methods for the safe disposal of unused or expired medications to prevent them from entering the environment.[6] Rational Prescribing: Encouraging healthcare professionals to prescribe medications judiciously to minimize waste and reduce the risk of antibiotic resistance. Research and Monitoring: Conducting ongoing research to understand the environmental impact of pharmaceuticals and monitoring contaminants levels. Policy and Regulation: Enacting and enforcing regulations that limit pharmaceutical contaminants and encourage sustainable practices.[6] Education: Raising awareness among the public, healthcare providers, and the pharmaceutical industry about the environmental impact of drugs and promoting best practices for mitigating these effects. The Role of Producers and the Pharmaceutical Industry Producers and the pharmaceutical industry have a crucial role to play in addressing these challenges by designing and re-designing of products such that they are not persisting in the environment and have a low impact on the planetary health. Investing in research and development of greener technologies and greener drugs, improving waste management practices, and adhering to stringent environmental regulations, the industry can significantly reduce its ecological footprint.[7] The Role of Consumers Patients significantly contribute to sustainable healthcare by adhering to prescribed medication regimens, which helps ensure the right amount of drugs is used and minimizes waste. Proper adherence and dosage will not only improve health outcomes but also prevent complications that could lead to increased medication use. Educating patients about these practices is essential. Their active involvement is crucial for creating a more efficient and environmentally friendly healthcare system. [7] Role of Healthcare Professionals Healthcare professionals drive sustainable prescription practices by ensuring accurate dosing and promoting adherence to reduce drug waste. Their guidance helps optimize treatment plans, minimizing environmental impact and enhancing patient outcomes.[7] Role of Licensing Authorities Licensing authorities are responsible for granting the licence to market a drug. They can play a vital role in planetary health by asking for a thorough environmental risk assessment record before drug approval and implementing post-marketing surveillance to monitor the environmental impact of pharmaceuticals. With this potential ecological risks may be identified and mitigated, fostering safer drug use practices. This proactive and continuous evaluation helps protect ecosystems and supports sustainable pharmaceutical development.[7] Global Mitigation Strategies Countries around the world are taking steps to mitigate the environmental impact of pharmaceuticals: USA: The Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) are working to improve pharmaceutical waste management and promote green chemistry in drug manufacturing.[8] Europe : European Medicines Agency (EMA) has been at the forefront with initiatives like the “Greener Pharmaceuticals” program, which aims to reduce environmental pollution through sustainable practices.[8] Japan: Japanese regulatory bodies and the Ministry of Environment emphasize the need for environmental risk assessments in the drug approval process and are investing in technologies to treat pharmaceutical waste.[8] Australia: The Therapeutic Goods Administration (TGA) has put forth regulations that require manufacturers to provide information on the environmental impact of their products and promotes the Return Unwanted Medicines (RUM) Program, which allows consumers to return unused medications to pharmacies. Sweden: The Swedish Environmental Protection Agency (SEPA), requires the manufacturers to conduct environmental assessments and also promotes campaigns on safe medication disposal. Germany: The Federal Environment Agency (UBA) has strict and comprehensive strategies under the German Waste Management Act for proper disposal of pharmaceuticals. The Situation in India To ensure planet safety, Indian pharmaceutical guidelines mandate adherence to stringent Good Manufacturing Practices (GMP) and Environmental Impact Assessments (EIA) to minimize industrial waste and emissions. The Central Pollution Control Board (CPCB) enforces regulations for the proper disposal of pharmaceutical waste, including expired medications, to prevent environmental contamination. The Bio-Medical Waste Management Rules (BMW Rules) guide the safe management of biomedical waste from healthcare facilities. Encouraging green chemistry practices further reduces the environmental footprint of drug manufacturing. Additionally, evolving policies on Extended Producer Responsibility (EPR) are require producers to manage the lifecycle of their products, promoting sustainable disposal practices. Conclusion The need for planetary health has never been more urgent. As the environmental impact of prescription drugs becomes increasingly apparent, it is necessary that we adopt comprehensive strategies to mitigate these effects. Initiatives like One Health emphasize the deep connection between human health, animal health, and the environment. By understanding how these systems influence one another, One Health encourages solutions that benefit all three areas simultaneously. By promoting sustainable practices, improving education, and enforcing robust regulations, we can safeguard both human health and the health of our planet. Thus the pharmaceutical industry, healthcare providers, and policymakers must work together in harmony to progress towards a sustainable future.