How does the duration of action of Tadagra Softgel 20 Mg compare to lower doses Home › Forums › Metabolic / Miscellaneous Disorders › How does the duration of action of Tadagra Softgel 20 Mg compare to lower doses This topic has 0 replies, 1 voice, and was last updated 1 year, 10 months ago by Ronymeran. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In