The invention relates to a composition or method for treating at least one of infection, sepsis and injury or inducing a hypotensive state or a low pain or analgesic state in a subject susceptible to or suffering from at least one of infection, sepsis and injury. The composition comprises (i) a compound selected from at least one of a potassium channel opener, a potassium channel agonist and an adenosine receptor agonist； and (ii) an antiarrhythmic agent or a local anaesthetic.
