Betadine Douche has an immediate onset and prolonged duration of action. It is a cleanser with a broad spectrum of activity. It rapidly eliminates all pathogens, drastically reduces the risk of infection and prevents recurrence of symptoms. Components Povidone iodine 10% Pack 250 ml How to Use Betadine Douche Kit Mix 30ml of Betadine Douche & wash with 250 ml of lukewarm water. Gently insert the applicator as far as possible into the press the bottle, until the solution is used up.