LAKE FOREST, Calif.--(BUSINESS WIRE)--April 23, 2004--

I-FLOW CORPORATION (NASDAQ:IFLO) plans to release financial results for the first quarter ended March 31, 2004 at approximately 7:45 a.m. EDT on Tuesday, April 27, 2004. I-Flow Corporation has scheduled a conference call at 11:00 a.m. EDT that morning to discuss its results for the quarter.

A simultaneous webcast may be accessed from the Investors link or the Investors' Event Calendar link at www.IFLO.com. A replay will be available after 1:00 p.m. EDT at this same Internet address. For a telephone replay, dial (800) 633-8284, reservation #21193071 after 1:00 p.m. EDT.

About I-Flow

I-Flow Corporation (www.IFLO.com) designs, develops and markets technically advanced, low cost ambulatory infusion systems that are redefining the standard of care by providing life enhancing, cost effective solutions for pain relief.

    CONTACT: Berkman Associates
             John Hicks (Investors), 310-277-5162
             info@BerkmanAssociates.com
             www.IFLO.com
             or
             I-Flow Corporation
             James R. Talevich, 949-206-2700

    SOURCE: I-Flow Corporation