A Multicenter, Long-Term Extension Study to Assess Safety of Oral Sildenafil Citrate In The Treatment Of Subjects Who Have Completed Study A1481131
A Multicenter, Long-Term Extension Study to Assess Safety of Oral Sildenafil Citrate In The Treatment Of Subjects Who Have Completed Study A1481131
Active treatment, dose-blinded extension study evaluating the safety and long term efficacy of sildenafil citrate in children with PAH.
Inclusion Criteria:
Exclusion Criteria:
Bogota, Cundinamarca, Colombia
Hyderabad, Andhra Pradesh 500 001, India
Hyderabad, Andhra Pradesh 500 073, India