Leerink views the selloff in shares of The Medicines Co. after the company preannounced weaker than expected Q1 revenue as a buying opportunity. The firm expects upcoming pipeline catalysts to create value in 2015. It thinks more visibility into four new products with significant revenue potential will move the stock higher. Leerink believes the preannouncement, driven by hospital customers buying fewer products due to the potential for a generic Angiomax to become available, should not come as a surprise. It keeps an Outperform rating on The Medicines Co.