Topic Tag: At the same amount of sildenafil that can be taken safely is 998 mg. Search for: Home Page › Forums › Topic Tag: At the same amount of sildenafil that can be taken safely is 998 mg. Viewing topic 1 (of 1 total) Topic Voices Posts Last Post At the same amount of sildenafil that can be taken safely is 998 mg. Started by: Anonymous in: Requests 1 1 3 months ago Anonymous Viewing topic 1 (of 1 total)