Drug utilization study in ophthalmology out patients in a tertiary care teaching hospital

Janaki Devi C. H., Seethalakshmi S., Devaraj S.


Background: The objective of the study was to evaluate the utilization of the drugs in the ophthalmology outpatient department.

Methods: Present study was conducted at ESIC medical college & PGIMSR Ophthalmology Department. Total 700 prescriptions were collected from 700 patients and prescriptions were analysed for total and average number drugs per prescription, duration of treatment, dosage form, drug encounter with antibiotics and other group of drugs also percentage of drugs prescribed by generic names.

Results: After analysing the prescriptions, average number of drugs per prescription was 2.14 and the range of drugs prescribed were varied from 1-5. Total drugs prescribed were 1502 with 7 different dosage forms. Most commonly prescribed were antibiotics (28.14%) followed by antihistamines (14.28%) and vitamins and minerals (14.28%). Thirdly ocular lubricants were frequently prescribed (12.12%). Fluroquinolones (moxifloxacin) were very commonly prescribed in antibiotics. The common prescription writing errors were very minimal.

Conclusions: The present study revealed trend of prescribing practices of the Opthalmologists of the Institute. This study shows less polypharmacy, use of injection was limited and majority of the drugs prescribed in generic and hospital formulary drug list. Antibiotics were prescribed most frequently.


Drug utilisation, Prescribing pattern, Antibiotics, Lubricants

Full Text:



WHO. The selection of essential drugs: Report of a WHO expert committee. World Health Organ Tech Rep Ser. 1977;615:1-36.

WHO. World Health Organization (WHO) and International Network for Rational use of Drugs, how to Investigate Drug use in Health Facilities: Selected Drug use Indicators. Geneva, Switzerland: WHO, DAP;1993. Available at: medicines/publications/how-to-investigate_drug-use/en/. Accessed on 10 May 2020.

WHO. World Health Organization (WHO) International Working Group for Drug Statistics Methodology, WHO Collaborating Centre for Drug Statistics Methodology, WHO Collaborating Centre for Drug Utilization Research and Clinical Pharmacological Services, Introduction to Drug Utilization Research. Oslo, Norway: WHO; 2003. Available at: 42627. Accessed on 05 May 2020.

World Health Organization. Introduction to Drug Utilization Research. Oslo, Norway: WHO; 2003. Available at: medicin-edocs/en/d/Js4876e. Accessed on 2017 April 2020.

Lee D, Bergman U. Studies of drug utilization. In: Storm LB, editor. Pharmacoepidemiology. Chichester, UK: John Wiley & Sons; 2005: 401-417.

Hasmnis AA, Patil SS, Narayan KA, Rashid AK, Mohanty BK. Drug utilization study for acute illnesses in village Banggol, Malaysia; the findings of a household survey. Al Ameen J Med Sci 2010;3:165-8.

Mirza NY, Desai S, Ganguly B. Prescribing pattern in a pediatric out-patient department in Gujarat. Bangladesh J Pharmacol. 2009;4:39-42

Maini R, Verma KK, Biswas NR, Agrawal SS. Drug utilization study in dermatology in a tertiary hospital in Delhi. Ind J Physiol Pharmacol. 2002;46(1):107-10.

Biswas NR, Jindal S, Siddiquei MM, Maini R. Patterns of prescription and drug use in ophthalmology in a tertiary hospital in Delhi. Brit J Clinic Pharmacol. 2001;51(3):267-9.

Banerjee I, Bhadury T, Sengupta T, Roy D. Drug Utilization Study in Ophthalmology Out-patient Department of a Medical College in India. Anna Medic Heal Sci Resea. 2014;4(4):667-70.

Maniyar Y, Bhixavatimath P, Akkone V. A drug utilization study in the ophthalmology department of a medical college, Karnataka, India. J Clinic Diagnost Resea. 2011;5(1):82-4.

Nehru M, Kohli K, Kapoor B, Sadhotra P, Chopra V, Sharma R. Drug utilization study in outpatient ophthalmology department of Government Medical College. JK Science. 2005;7:149-51.

Slathia A, Gupta V, Nanda R, Mahajan P. Drug Utilization Pattern in Ophthalmology: A Observational and Cross-sectional Study. Int J Sci Stud. 2017;5(5):63-5.

Nye M, Rudner S, Bielory L. Emerging therapies in allergic conjunctivitis and dry eye syndrome. Exp Opin Pharmacother. 2013;14:1449-65.