Conference Call to Be Held at 8:30 a.m. Eastern Time

PARSIPPANY, NJ -- (Marketwire) -- 07/15/09 -- The Medicines Company (NASDAQ: MDCO) has scheduled its quarterly conference call for Wednesday, July 29, 2009 at 8:30 a.m. Eastern Time to discuss second quarter 2009 financial results and operational developments.

The conference call will be available via phone and webcast. The dial in information is listed below:

Domestic Dial In:                       800-884-5695
International Dial In:                  617-786-2960
Passcode for both dial in numbers:      64853162

Replay is available from 11:30 a.m. Eastern Time following the conference call through August 12, 2009. To hear a replay of the call, dial 888-286-8010 (domestic) and 617-801-6888 (international). Passcode for both dial in numbers is 37428278.

This call is being webcast and can be accessed at The Medicines Company website at www.themedicinescompany.com.

About The Medicines Company

The Medicines Company (NASDAQ: MDCO) is focused on advancing the treatment of critical care patients through the delivery of innovative, cost-effective medicines to the worldwide hospital marketplace. The Company markets Angiomax® (bivalirudin) in the United States and other countries for use in patients undergoing coronary angioplasty, and Cleviprex® (clevidipine butyrate) injectable emulsion in the United States for the reduction of blood pressure when oral therapy is not feasible or not desirable. The Company also has two products in late stage development, cangrelor, an investigational antiplatelet agent, and oritavancin, a semi-synthetic lipoglycopeptide antibiotic currently awaiting EU regulatory approval. The Company's pipeline also includes a serine protease inhibitor, CU2010, in early-stage development. The Medicines Company's website is www.themedicinescompany.com.