For U.S. Healthcare Professionals
For medical information on OPSUMIT® (macitentan)
please contact our Medical Information Department
Janssen Medical Information can be reached by phone at: 1-800-JANSSEN (1-800-526-7736) Monday-Friday, 9 AM - 8 PM ET.
Or by mail at:
Janssen Scientific Affairs Medical Information Center
PO Box 200
Titusville, NJ 08560
To report suspected adverse reactions, contact Janssen at 1-800-JANSSEN (1-800-526-7736), or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.