Discount Drug Mart a Chain Store Guide list of the top 100 drug chains. The early 1990s brought increased competition to the industry. Discount Drug Mart was still smaller than the Ohio drug store chains of Revco and Phar-Mor, and were being threatened by superstores Kmart, Wal-Mart, and Target Corporation. Discount Drug Mart expanded across Ohio through the 1990's. Discount Drug Mart Discount Drug Mart, Inc., is an Ohio-based drug store chain. Its first store opened in Elyria, Ohio in 1969. In 1969, Parviz Boodjeh established the first Discount Drug Mart in Elyria, Ohio. The store originally filled prescriptions, and sold toiletries, grocery,
C corporation known as an S corporation. An S corporation is not itself subject to income tax; rather, shareholders of the S corporation are subject to tax on their pro rata shares of income based on their shareholdings. To qualify to make the S corporation election, the corporation's shares must be held by resident or citizen individuals or certain qualifying trusts. A corporation may qualify as a C corporation without regard to any limit on the number of shareholders, foreign or domestic. In the United States, corporations are formed under laws of a state or the District of Columbia. Procedures vary widely