0000912057-02-000849 Sample Contracts

between SEPRACOR INC. as the Company, and

Registration Rights Agreement • January 10th, 2002 • Sepracor Inc /De/ • Pharmaceutical preparations • New York

• Contract Type
  Registration Rights Agreement
• Filed
  January 10th, 2002
• Company
  Sepracor Inc /De/
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York

Exhibit 12 -------------------------------------------------------------------- --------------------------------------------------------------- COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES --------------------------------------------...

Sepracor Inc /De/ • January 10th, 2002 • Pharmaceutical preparations

• Company
  Sepracor Inc /De/
• Filed
  January 10th, 2002
• Industry
  Pharmaceutical preparations

SEPRACOR INC. as Issuer AND

Sepracor Inc /De/ • January 10th, 2002 • Pharmaceutical preparations • New York

• Company
  Sepracor Inc /De/
• Filed
  January 10th, 2002
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York