A STUDY ON PRESCRIBED DAILY DOSES USING WHO ATC/DDD CODING METHODOLOGY IN A TERTIARY CARE CORPORATE HOSPITAL
Objectives: Our primary objective is to assess the prescribed daily doses of various drugs using the WHO ATC/DDD coding
methodology. Methodology: It was a prospective observational study conducted in various departments of Sunshine
Hospitals for a period of 6 months. A total of 300 prescriptions were included in the study and were followed for the drug use
evaluation. This study included both male and female in-patients of age above 18 years. Results: In our study, we have
observed that 50.16% of drugs have ATC/DDD values. The ratio of PDD=DDD, PDDDDD was found to
be 24:81:46 respectively. Among the oral drugs acting on gastro intestinal system, proton pump inhibitors have found to be
utilized the highest followed by antacids. Anti-spasmodic drugs are the drugs least utilized. Among the parenteral drugs
acting on gastro intestinal system, anti-emetics have found to be utilized the highest followed by proton pump inhibitors.
Among the drugs (oral) acting on cardiovascular system, HMG-CoA reductase inhibitors are found to be utilized highest
followed by ARB’s. Potassium channel openers are least utilized. Conclusion: We conclude that PDD is less than DDD for
majority of the drugs. DDD gives a rough estimate of drug use not the exact picture. All the drugs prescribed were in safe
doses.