Pentoxifylline

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What is Pentoxifylline?

Pentoxifylline is a prescription medication used to improve blood flow in patients with intermittent claudication—the leg pain, cramping, and fatigue that occur during walking due to peripheral artery disease. It belongs to a class called xanthine derivatives and works by improving the flexibility of red blood cells, reducing blood viscosity, and decreasing platelet aggregation—all of which allow blood to flow more easily through narrowed peripheral blood vessels. It doesn't open blocked arteries but improves circulation within the existing vessel structure. Taken three times daily with meals, it helps patients walk farther before symptoms appear.

Red blood cell deformability improvement

Increases erythrocyte flexibility, allowing red blood cells to pass more easily through narrowed, partially obstructed peripheral blood vessels—improving oxygen delivery to ischemic muscle tissue during exercise.

Blood viscosity reduction

Decreases plasma viscosity and platelet aggregation, reducing the resistance to blood flow in peripheral vessels and improving overall microcirculatory perfusion in affected limbs.

Claudication symptom relief

By optimizing blood flow through existing vessels rather than opening blocked ones, Pentoxifylline extends the distance patients with peripheral artery disease can walk before cramping and pain force them to stop—improving functional capacity and quality of life.

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Your care doesn’t end after your visit. Message your care team anytime to discuss side effects, ask questions about your medication, or request a refill.

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