Contact your
Local MSL
Request A Medical Science
Liaison (MSL)
Contact your
Local MSL
Request A Medical Science
Liaison (MSL)

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.

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