Environmentally Classified Pharmaceuticals 2014-2015

Environmentally Classified Pharmaceuticals 2014-2015

2014-2015 ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS Stockholm County Council Contents Reducing Residues from Pharmaceuticals in Nature is Part Reducing Residues from Pharmaceuticals of the Environmental Work of in Nature is Part of the Environmental Work of Stockholm County Council ..................1 Stockholm County Council Impact of Pharmaceuticals on Contributing to the reduction of environmental the Environment .........................................................................2 risks from pharmaceuticals is an important part How the Substances are Classified ......................2 of the environmental work of Stockholm County How to Read the Table .................................................4 Council. According to the Environmental Challenge Substances which are Exempt 2016, the Council´s 2012-2016 Environmental from Classification ............................................................6 Programme, the Council is mandated to i.a. do The Precautionary Principle ......................................6 preventive environmental health work. This invol- Tables A Alimentary Tract and Metabolism............................7 ves fostering healthy inhabitants in an environ- ment with clean air and water. To reduce the most B Blood and Blood-Forming Organs ............................9 environmentally hazardous remains of medicinal C Cardiovascular System .................................................10 products in the natural surroundings is therefore D Dermatologicals ............................................................13 an important part of the environmental work of the County Council. One aspect of this work is the G Genito-Urinary System and Sex Hormones .......14 assessment and classification of pharmaceuticals H Systemic Hormonal Preparations excl according to their impact on the environment. Sex Hormones and Insulins .......................................16 The pharmaceuticals are classified both in terms J Anti-Infectives for Systemic Use ..............................17 of their inherent capacity to affect the environment L Antineoplastic and Immunomodulating Agents .19 (environmental hazard), and as regarding the M Musculo-Skeletal System ..........................................21 environmental risk posed by the pharmaceutical substances when used to their current extent. The N Nervous System ..............................................................23 environmental hazard assessment was initiated in P Antiparasitic Products, Insecticides 2003 by Environmental Department of the and Repellents .................................................................27 Stockholm County Council. During 2005, the clas- R Respiratory System .......................................................27 sification was extended to also cover an environ- S Sensory Organs ...............................................................30 mental risk assessment carried out by The Swedish Association of the Pharmaceutical Industry (Lif). V Various ...............................................................................31 The classification system is used in considering the Reading tips ........................................................................33 environmental impact of the pharmaceuticals on the Vocabulary ............................................................................34 so called Wise List (Kloka Listan), a list of recom- Index ..........................................................................................36 mended pharmaceuticals for common diseases in Stockholm County Council, issued by the Drug and What You as a Prescriber Can Do ......................52 Therapeutics Committee. Advice For Your Patient ............................................53 The classification is also available at the website www.janusinfo.se/environment January 2014 edition ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS 2014 1 Impact of Pharmaceuticals Environmental hazard expresses the inherent environmentally damaging characteristics of the on the Environment substance in the following terms: The majority of all pharmaceuticals that patients PErsISTEncE – ability to resist degradation in take are excreted in the urine, in unchanged condi- the aquatic environment. tion or as metabolites, and reach wastewater plants BIOaccUMUlaTION – accumulation in adipose and sometimes even waterways and ground water. tissue of aquatic organisms. Medicines are often adapted to resist biodegrada- TOXICITY – the potential to poison aquatic tion and can therefore remain in the environment organisms. for a long time. Some pharmaceuticals have been found in low, but traceable contents in drinking Each of these characteristics is assigned a water, which is a warning sign that the current numerical value (0–3). The total of these values handling of pharmaceuticals may lead to health constitutes the PBT Index for the substance. The and environmental problems in the future. PBT Index can assume values in the interval 0–9. Access to healthy water is a prerequisite for good The hazard model was formulated by Stockholm health. Since society’s use of chemicals, including County Council and Apoteket AB (The National pharmaceuticals, is continuously growing, the risk Corporation of Swedish Pharmacies). Since 2006, is also increasing that these chemicals will return all information about persistence, bioaccumula- to us in our food and water supply through nature’s tion and toxicity is obtained from www.fass.se. ecocycle. We have little knowledge of the long-term More information is available at the non- effects that continuously supplied trace quantities commercial website Janusinfo, produced by the of pharmaceuticals and other chemicals could have Stockholm County Council: on our development, our ability to resist disease www.janusinfo.se/environment and our wellness in general. Therefore caution is Environmental risk refers to the risk of advisable. In other words, even if we currently do toxicity to the aquatic environment. Environmen- not have scientific proof that pharmaceuticals in tal risk is based on the ratio between predicted nature can cause health problems, it could be wise environmental concentration of the substance to reduce our unintentional exposure to them as in Swedish water systems (PEC) and the highest much as possible i.e. adhere to the Precautionary concentration of the substance that does not have Principle, see p.6. a harmful effect on the environment (PNEC). Information about the risk is obtained from How the Substances are Classified www.fass.se. Pharmaceutical substances are assessed with Risk is specified as: respect to environmental hazard and environmental risk. When assessing a medication’s environmental InsIgnIFIcanT if PEC/PNEC ≤ 0,1 impact, consideration should be given to both en- LOW if PEC/PNEC > 0,1 – ≤ 1 vironmental hazard and environmental risk, as the MODEraTE if PEC/PNEC > 1 – ≤ 10 terms express different properties of the substance. HIgh if PEC/PNEC > 10 2 ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS 2014 ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS 2014 3 RISK refers to toxic risk to the aquatic environment, the calculation based How to Read the Table on Swedish conditions and is given as insignificant, low, moderate or high. THE SUBSTANCE can be found under several dif- ”Cannot be excl” means that the ma- ferent drug groups. For example, triamcinolon can be nufacturer has stated that the docu- found under “A Alimentary Tract and Metabolism” as mentary basis for assessment of risk is well as “D Dermatologicals”. Substances indicated in insufficient. Information bold are included in “Kloka Listan 2014”, Stockholm about environmental risks P (Persistence) can County Council’s “Wise List” of recommended drugs can be obtained from assume the value 0 or 3 for common diseases (including recommendations for www.fass.se. For risk specialized care). ”exempt”, see p.6 B (Bioaccumulation) can assume the value 0 or 3 T (Toxicity) can assume THE PBT INDEX is a measure SUBSTANCE the value 0–3 of environmental hazard and RISK can assume all values from J Anti-infectives PBT P B 0–9 (the total of P-, B- and Antibacterials for systemic use T VOLUME IN DDD the T-value). The higher trimetoprim the value of a substance, erythromycin insignificant the greater its danger to 4 ofloxacin 3 0 1 the environment. amoxicillin insignificant insignificant 6 149 661 3 0 3 C 261 420 moderate 9* 3 3* 6 3 133 025 *(ASTERISK) AFTER THE 3 0 3 1 580 PBT INDEX indicates that 953 571 VOLUME IN DDD, the assessment is uncertain C 272 984 The sales by prescrip- due to lack of data. tions and to hospitals in DDD (Defined Daily Two substances may have the same risk values but dif- Doses) of the substance ferent PBT values, but the risk assessment can also be in Stockholm County different even if the PBT values are the same. Council during one When assessing a medication’s environmental impact, year. consideration should be given to both environmental risk (Sep 2012–Aug 2013) and environmental hazard since bioaccumulation and Indicates DDD for persistence are not included in the risk assessment. C (combination drugs, 1 tablet = 1 DDD) E (drugs for external use, 1 gram = 1 DDD) DDD indicated for pharmaceuticals for external use and combined products is not based on the amount of an active substance and can therefore not be compared to the DDD for other drugs. 4 ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS 2014 ENVIRONMENTALLY CLASSIFIED PHARMACEUTICALS 2014 5 Substances which are Exempt SUBSTANCE RISK PBT P B T VOLUME

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