The 4 under ripokishin A as the competition medicine for slowly the active substance of the anaphylaxis and use null of its

摘要

Composition and methods are disclosed for antagonizing SRS-A, and especially LTD4, comprising the administration of LXA4 or an active derivative thereof to an animal. These compositions and methods are useful in the control of hemostasis, vascular reactivity, and especially vasoconstriction, and anaphylactic and allergic reactions in animals.