Eligibility criteria
Condition
Impotence
Sex
Male
Age
18 + years
Inclusion criteria
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- Subjects must have documented clinical diagnosis of erectile dysfunction based on a
screening SHI-M score of
dysfunction
- Subjects must be either PDE-5 inhibitor naive; i.e. have never used sildenafil,
tadalafil or vardenafil, or have been previously treated with no more than six doses
of a PDE-5 inhibitor (sildenafil, tadalafil, vardenafil) and must have taken their
last dose no less than 4 weeks prior to the screening visit
Exclusion criteria
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- Subjects who are currently prescribed, taking and/or likely to be treated with
nitrates or nitric oxide donors in any form on either a regular or intermittent basis