Bone Care International: To Announce Second Quarter 2005 Financial Results on January 26, 2005

CONFERENCE CALL ON JANUARY 27, 2005 AT 9:00 AM CST

FOR IMMEDIATE RELEASE

Middleton, Wisconsin – January 13, 2005 – Bone Care International, Inc. (Nasdaq: BCII) today announced that the Company plans to report its second quarter 2005 financial results on Wednesday, January 26, 2005, after the close of the financial markets. Management will host a conference call on Thursday, January 27, 2005, at 9:00 a.m. CST. The toll-free number within North America is 800-938-0653; the dial-in number for international participants is 973-321-1100. The call is available for playback until midnight on January 30, 2005 at 877-519-4471 within North America and at 973-341-3080 for international callers. The replay pass code is 5599858. The call can also be accessed via webcast and will be archived for playback at www.bonecare.com/conferencecall.

About Bone Care International

Bone Care International (www.bonecare.com) is a specialty pharmaceutical company engaged in the discovery, development and commercialization of innovative therapeutic products to treat the unmet medical needs of patients with debilitating conditions and life-threatening diseases. Our current commercial and therapeutic focus is in nephrology, utilizing Hectorol®, a novel vitamin D hormone therapy, to treat secondary hyperparathyroidism in patients with moderate to severe chronic kidney disease and end-stage renal disease. In addition to chronic kidney disease, the Company is developing vitamin D hormone therapies to treat hyperproliferative disorders such as cancer and psoriasis.

Contact:
Bone Care International, Inc.
Brian J. Hayden
Chief Financial officer
608-662-7800