Sildenafil should not be used with any other medicine or device that causes erections. Slowly pull back the plunger until the required dose. Bleeding disorders, history of or Stomach ulcer, or history of or—Chance of problems occurring may be increased. It continues to work for up to 4 hours, although its action is usually less after 2 hours. The products discussed in this site may have different product labeling in different countries. Children younger than 1 year of age—Use and dose must be determined by your doctor. The pharmacokinetics of sildenafil are dose-proportional over the recommended dose range.Examples of Viagra’s more commonly reported side effects include: headache. flushing (temporary warmth, redness, or deepening of skin color) stuffy nose. indigestion (upset stomach) mild vision. Typical dosing for Sildenafil (Viagra) The typical dose is to take 50 mg of sildenafil (Viagra) by mouth, about 1 hour before sex, as needed. The maximum Missing: sold. Still, if your doctor says it’s okay for you to use and you end up paying out-of-pocket, you can still get the generic for a lot less than Viagra. According to price-comparison site test1.ru