Pentoxifylline works primarily by decreasing blood viscosity, increasing red blood cell flexibility, and enhancing the blood flow to the microcirculation. By improving the rheological properties of blood, it alleviates symptoms associated with poor circulation, such as pain, cramps, and fatigue, especially during physical exertion. The drug's ability to enhance oxygen delivery to tissues further supports its use in conditions characterized by inadequate blood flow.
The role of APIs goes beyond merely being an ingredient in drug formulations. They are responsible for the therapeutic effects that drugs provide, influencing how a drug interacts with the body, how it is absorbed, distributed, metabolized, and ultimately excreted. Different APIs can exhibit various mechanisms of action, which can affect patient outcomes and treatment efficacy.