- Patients Who Completed study A1481156 and Are Judged by the Investigator to Derive
Clinical Benefit from Continued Treatment with Sildenafil, Prior to Reimbursement and
Availability for Subjects in Russian Federation.
- Child bearing age women should have appropriate contraception.
- Signed informed consent. Patients who have a wish and possibility to follow treatment
regimens in terms of the study.
- Pregnant and lactating women.
- Participation in other studies in the current moment or during study period except of
A1481156.
- Patients with severe acute or chronic diseases psychiatric disorders or laboratory
abnormalities.