Pentoxifylline is a medication that increases blood flow to the arms and legs. It can be used to treat: 

• Peripheral vascular disease (poor blood flow to arms and legs)
• Intermittent claudication (cramping muscle pain or numbness in the legs)
• Venous leg ulcers 

This medication may also be used for other conditions as determined by your doctor.

Take this medication with or after food. Swallow the tablets whole with a glass of water. 

It may take several weeks to see the full effects of this medication. Do not stop taking your medication without consulting your doctor.

Take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose. Do not double the next dose to make up for the missed dose. 

Inform your doctor if:

• You are allergic to this medication; caffeine-containing products (coffee, tea, colas); theobromine, theophylline, or if you have any other allergies.
• You have had a recent bleeding problem in your brain or eye.
• You have low blood pressure.
• You have heart problems or recently have had a heart attack.
• You have uneven and very fast heartbeats.
• You previously or currently have gastric ulcer or duodenal ulcer.
• You have kidney or liver problems.
• You are taking any blood thinning medications, such as aspirin, rivaroxaban, warfarin; other medications; or supplements.
• You have any health problems.
• You are pregnant, planning to get pregnant, or are breastfeeding.
• You are going for surgery including dental surgery. Inform your doctor/dentist that you are taking pentoxifylline.

Certain side effects of this medication are not unusual and may even disappear during treatment. If any of the following effects persist or are severe, consult your doctor: 

• Nausea, vomiting
• Bloating
• Dizziness
• Headache
• Flushing 

Consult your doctor as soon as possible if any of these additional effects occur, as they may indicate more serious side effects:

• Allergic reaction (difficulty breathing; swelling of your lips, tongue, eyes or face; or itchy rashes over your whole body)
• Chest pain
• Irregular or fast heart beat
• Severe dizziness or fainting

Inform your healthcare professional if you are taking or intend to take any other medications, supplements, traditional medications or herbal remedies.

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.

If the brand of Pentoxifylline that you received is Trenlin, it is recommended to store in a cool, dry place, below 25°C. If you are unable to store it under 25°C, please store the medicine in the refrigerator (2 to 8°C).

Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.