This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

Pentoxifylline was initially approved by the United States Food and Drug Administration (FDA) on 28 August 1984.

Mechanism of Action of undefined

Pentoxifylline works by inhibiting certain enzymes, such as phosphodiesterase and adenosine deaminase, which regulate cellular functions and blood vessel constriction. By inhibiting these enzymes, it helps dilate blood vessels, improve circulation, and reduce the resistance to blood flow. 

Uses of undefined

Pentoxifylline improves blood circulation and manages conditions such as peripheral arterial disease (PAD), chronic venous insufficiency (CVI), and impaired wound healing. It is also used in Raynaud's phenomenon, vascular dementia, sickle cell disease, and adjunct treatment for certain lung and liver conditions. 

undefined Drug administaration and Dosage available

The route of administration for Pentoxifylline is primarily oral, which means it is taken by mouth in the form of tablets or capsules. The choice depends on the patient's condition and instructions by the health care provider.

Warnings, Precautions and Side Effects of undefined


Pentoxifylline can reduce blood clotting ability, increasing the risk of bleeding. This risk might be elevated in individuals with bleeding disorders, those taking anticoagulant medications, or those undergoing surgical procedures. Individuals with severe liver disease might experience altered drug metabolism. Severe allergic reactions, though rare, such as skin rash, itching, swelling, severe dizziness, and difficulty breathing, can occur while using this medication though rare, can occur. Serious skin reactions, such as Stevens-Johnson syndrome or toxic epidermal necrolysis, have been reported with this medication.


Inform your healthcare provider of any known allergies to pentoxifylline or its components. Seek medical attention immediately if any allergic symptoms manifest. Use this medication cautiously if you have a history of bleeding disorders or are taking anticoagulant medications. Report any signs of bleeding immediately. If you have arrhythmias or a history of heart attack, consult your doctor before starting the medication. 

Side Effects

Common side effects of Pentoxifylline can include upset stomach, dizziness, headache, flushing, nervousness, and gastrointestinal discomfort. More serious but less common side effects are severe allergic reactions, bleeding issues, liver problems, severe skin reactions, and changes in heart rate. Individuals might also experience restlessness and interactions with other medications.

Word Of Advice

Before taking Pentoxifylline, inform your healthcare provider of any allergies, bleeding disorders, heart conditions, liver or kidney disease, or history of severe skin reactions. If you have diabetes, gastrointestinal conditions, or eye disorders, exercise caution. Children and those with immunosuppression or pre-existing medical conditions require special consideration. Monitor blood pressure and stay hydrated, especially in hot weather. Be aware of the medication's effects on driving and operating machinery and its interactions with caffeine and grapefruit. Stick to prescribed dosages and durations, and consult your healthcare provider before making any changes. These precautions are important to ensure this medication's safe and effective use for individuals' needs and health circumstances.

Frequently Asked Question


  1. Validus Pharmaceuticals LLC, US Food and Drug Administration, [Revised on Jan 2016] [Accessed on 26th Aug 2023],
  2. Neuraxpharm UK Ltd, Electronic Medicines Compendium (EMC), [Revised on 30th Jun 2023] [Accessed on 15th Aug 2021],
  3. Joshua M. Galanter, Homer A. Boushey, Drugs Used in Asthma, Lange’s Basic and Clinical Pharmacology, 14th Edition, 2018, 346-365.


The drug information on this page is not a substitute for medical advice, it is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.