This thesis examines the impact of capital structure on profitability in the pharmaceutical industry of Pakistan. The author analyzes data from 10 pharmaceutical companies over 3 years to determine the relationship between capital structure variables (short term assets, long term assets, short term liabilities, long term liabilities) and profitability variables (return on assets, return on equity). Preliminary findings show no significant relationship between capital structure and profitability. The study aims to contribute to limited existing literature and provide a basis for future research.