Gilead: Gilead’s LEAP program serves current Letairis® patients only. Call 866-664-5327.
Zydus: Visit http://zydususa.com/ambrisentan/
Additional manufacturers: Ambrisentan is manufactured by multiple companies. At this time, however, PHA is only aware of the manufacturer assistance programs mentioned above. Additional manufacturers include but are not limited to: Activas, Cipla, Mylan, Par, Sigmapharm, Sun, Teva and Watson.