Guest guest Report post Posted October 14, 2008 You are correct. I must have looked up something else. I don’t think that would help me either. Barb Zyflo is a leuketrine? (spelling) blocker. It is used for allergies. It is not an antihistamine. I don't need those either. My sinuses stay very clear normally. Madeline Quote Share this post Link to post Share on other sites