[Penggunaan Potentially Inappropriate Medication (PIM) dapat mengganggu hasilluaran kesehatan yang diinginkan. Penggunaan PIM pun berperan penting dalamterjadinya morbiditas dan mortalitas sehingga dapat menurunkan kualitas hiduppasien geriatri. Di RSCM Jakarta, belum ada data mengenai proporsi penggunaanPIM pada pasien geriatri rawat inap. Tujuan penelitian ini adalah mengevaluasipenggunaan PIM berdasarkan kriteria Beers 2012 pada pasien geriatri rawat inap diRSCM Jakarta. Penelitian ini menggunakan desain potong lintang (cross-sectional)retrospektif. Data diperoleh dari rekam medis pasien geriatri rawat inap yangterdaftar di Bagian Rekam Medis RSCM Jakarta periode Januari-Juni 2015. Datamengenai riwayat penggunaan obat dan diagnosis tiap pasien diolah dan dianalisisberdasarkan kriteria Beers 2012. Dari 63 pasien yang memenuhi kriteria inklusi,didapatkan 16 (25,4%) pasien geriatri rawat inap telah menerima PIM. Obat-obatanyang termasuk PIM berdasarkan kriteria Beers yang paling banyak diresepkanantara lain digoxin >0,125 mg per hari, haloperidol dan klonidin. Dibandingkandengan penggunaan PIM di Rumah Sakit Pendidikan Layanan Tersier di India,Daerah Malabar di Kerala, Rumah Sakit Pendidikan India, Minnesota dan RumahSakit Tersier Pedalaman Nigeria, penggunaan PIM di RSCM Jakarta lebih rendah,namun, lebih tinggi dibandingkan di Rumah Sakit Italia, Brazil, RSUP Dr. M.Djamil Padang dan Metropolitan Hyderabad India. Perbedaan proporsi penggunaanPIM di RSCM Jakarta dibandingkan dengan RS lain dapat dipengaruhi olehperbedaan profil pasien dalam hal penyakit komorbid yang multipel, polifarmasi,ketersediaan obat dan pengetahuan dokter mengenai obat-obat yang masuk didalamkriteria Beers, The use of Potentially Inappropriate Medication (PIM) can affect the outcome oftreatment. The use of PIM contributes to the morbidity and mortality event and itcan reduce the quality of life of geriatric patients. In Cipto Mangunkusumo (CM)Jakarta Hospital, there was no data about the proportion of the use of PIM inhospitalized geriatric patients. The aim of this study is to evaluate the use of PIMbased on the Beers criteria 2012 in hospitalized geriatric patients in CM HospitalJakarta. The design of this study is a retrospective, cross sectional study. Data wasobtained from the medical records of geriatric patients hospitalized in the internalmedicine ward CM Hospital during the period of January to June 2015. Data aboutthe history of drug use and the diagnosis of patients were processed and analyzedbased on the Beers criteria 2012. Of the 63 geriatric patients evaluated, 16 (25.4%)have received PIM. The most frequent prescribed drugs categorized as PIM basedon Beers criteria are digoxin > 0,125 mg per day, haloperidol and clonidine.Compared with the PIM use in The Tertiary Care Teaching Hospital in India, IndianTeaching Hospital, Minnesota and Nigerian Rural Tertiary Hospital, the PIM usein CM Hospital is lower. However, it is higher when compared to those in the ItalianHospital, Brazil Hospital, RSUP Dr. M. Djamil Padang and MetropolitanHyderabad India. The differences in the proportion of use of PIM in CM JakartaHospital compared to other hospitals can be influenced by the differences ofpatients profile in terms of the multiple comorbid diseases, polypharmacy,availability of drugs and knowledge of physicians about drugs listed in the Beerscriteria.]