Pradaxa

Pradaxa Overview

Pradaxa (generic: dabigatran) is a prescription medication used to reduce the risk of stroke and blood clots in people who have a medical condition called atrial fibrillation. Pradaxa is in a class of medicines called direct thrombin inhibitors. Pradaxa helps prevent the formation of blood clots by inhibiting a naturally occurring protein called thrombin.

This medication comes in capsule form and is usually taken twice daily, with or without food. Swallow Pradaxa capsules whole.

Common side effects of Pradaxa include upset stomach or stomach pain.

Uses of Pradaxa

Pradaxa (dabigatran) is a prescription medicine used to reduce the risk of stroke and blood clots in people who have a medical condition called atrial fibrillation.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Side Effects of Pradaxa

Pradaxa can cause serious side effects.

  • See "Drug Precautions"
  • Allergic Reactions. In some people, Pradaxa can cause symptoms of an allergic reaction, including hives, rash, and itching. Tell your doctor or get medical help right away if you get any of the following symptoms of a serious allergic reaction with Pradaxa:
    • chest pain or chest tightness
    • swelling of your face or tongue
    • trouble breathing or wheezing
    • feeling dizzy or faint

Common side effects of Pradaxa include:

  • indigestion, upset stomach, or burning
  • stomach pain

Tell your doctor if you have any side effect that bothers you or that does not go away.

These are not all of the possible side effects of Pradaxa. For more information, ask your doctor or pharmacist.

Pradaxa Interactions

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Some of your other medicines may affect the way Pradaxa works. Certain medicines may increase your risk of bleeding. See "Drug Precautions".

Especially tell your doctor if you take:

  • rifampin (Rifater, Rifamate, Rimactane, Rifadin)
  • aspirin or aspirin containing products
  • non-steroidal anti-inflammatory drugs (NSAIDs)
  • warfarin sodium (Coumadin, Jantoven)
  • a medicine that contains heparin
  • clopidogrel (Plavix)
  • prasugrel (Effient)
  • Multaq
  • ketoconazole (Nizoral). 

This is not a complete list of Pradaxa drug interactions. Ask your doctor or pharmacist for more information.

Pradaxa Precautions

  • Pradaxa can cause bleeding which can be serious, and sometimes lead to death. This is because Pradaxa is a blood thinner medicine that lowers the chance of blood clots forming in your body.
  • You may have a higher risk of bleeding if you take Pradaxa and:
    • are over 75 years old
    • have kidney problems
    • have stomach or intestine bleeding that is recent or keeps coming back, or you have a stomach ulcer
    • take other medicines that increase your risk of bleeding, including:
      • aspirin or aspirin containing products
      • long-term (chronic) use of non-steroidal anti-inflammatory drugs (NSAIDs)
      • warfarin sodium (Coumadin, Jantoven)
      • a medicine that contains heparin
      • clopidogrel (Plavix)
      • prasugrel (Effient)
    • have certain kidney problems and also take the medicines dronedarone (Multaq) or ketoconazole tablets (Nizoral). 
    • Pradaxa can increase your risk of bleeding because it lessens the ability of your blood to clot. While you take Pradaxa:
      • you may bruise more easily
      • it may take longer for any bleeding to stop
    • Call your doctor or get medical help right away if you have any of these signs or symptoms of bleeding:
      • unexpected bleeding or bleeding that lasts a long time, such as:
        • unusual bleeding from the gums
        • nose bleeds that happen often
        • menstrual bleeding or vaginal bleeding that is heavier than normal
      • bleeding that is severe or you cannot control
      • pink or brown urine
      • red or black stools (looks like tar)
      • bruises that happen without a known cause or get larger
      • cough up blood or blood clots
      • vomit blood or your vomit looks like "coffee grounds"
      • unexpected pain, swelling, or joint pain
      • headaches, feeling dizzy or weak

Take Pradaxa exactly as prescribed. Do not stop taking Pradaxa without first talking to the doctor who prescribes it for you. Stopping Pradaxa may increase your risk of a stroke.

Pradaxa may need to be stopped, if possible, for one or more days before any surgery, or medical or dental procedure. If you need to stop taking Pradaxa for any reason, talk to the doctor who prescribed Pradaxa for you to find out when you should stop taking it. Your doctor will tell you when to start taking Pradaxa again after your surgery or procedure.

Do not take Pradaxa if you:

  • currently have certain types of abnormal bleeding. Talk to your doctor, before taking Pradaxa if you currently have unusual bleeding.
  • if you have a mechanical heart valve, also known as a mechanical prosthetic heart valve.
  • have had a serious allergic reaction to Pradaxa.

Pradaxa Food Interactions

Medicines can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Pradaxa there are no specific foods that you must exclude from your diet when receiving Pradaxa.

Inform MD

Before you take Pradaxa, tell your doctor if you:

  • have a mechanical heart valve (also known as a mechanical prosthetic heart valve)
  • have kidney problems
  • have ever had bleeding problems
  • have ever had stomach ulcers
  • have any other medical condition
  • are pregnant or plan to become pregnant
  • are breastfeeding or plan to breastfeed

Tell all of your doctors and dentists that you are taking Pradaxa. They should talk to the doctor who prescribed Pradaxa for you, before you have any surgery, or medical or dental procedure.

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.

Pradaxa and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant. It is not known if Pradaxa will harm your unborn baby.

Pradaxa and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed. It is not known if Pradaxa is excreted in human breast milk or if it will harm your nursing baby.

Pradaxa Usage

  • Take Pradaxa exactly as prescribed by your doctor.
  • Do not take Pradaxa more often than your doctor tells you to.
  • You can take Pradaxa with or without food.
  • Pradaxa comes in a bottle or in a blister package.
  • Only open 1 bottle of Pradaxa at a time. Finish your opened bottle of Pradaxa before opening a new bottle.
  • After opening a bottle of Pradaxa, use within 4 months. 
  • When it is time for you to take a dose of Pradaxa, only remove your prescribed dose of Pradaxa from your open bottle or blister package.
  • Tightly close your bottle of Pradaxa right away after you take your dose.
  • Swallow Pradaxa capsules whole. Do not break, chew, or empty the pellets from the capsule.
  • If you miss a dose of Pradaxa, take it as soon as you remember. If your next dose is less than 6 hours away, skip the missed dose. Do not take two doses of Pradaxa at the same time.
  • Your doctor will decide how long you should take Pradaxa. Do not stop taking Pradaxa without first talking with your doctor. Stopping Pradaxa may increase your risk of stroke.
  • Do not run out of Pradaxa. Refill your prescription before you run out. If you plan to have surgery, or a medical or a dental procedure, tell your doctor and dentist that you are taking Pradaxa. You may have to stop taking Pradaxa for a short time.
  • If you take too much Pradaxa, go to the nearest hospital emergency room or call your doctor.
  • Call your healthcare provider right away if you fall or injure yourself, especially if you hit your head. Your healthcare provider may need to check you.

Pradaxa Dosage

Take Pradaxa exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The recommended dose of Pradaxa is 150 mg taken by mouth, twice daily, with or without food. If you have reduced kidney function you may receive a lower dose.

Pradaxa Overdose

If you take too much Pradaxa, call your local Poison Control Center or seek emergency medical attention right away.

Forms of Pradaxa

Pradaxa capsules are available in 75 mg and 150 mg strengths.

Active ingredient: dabigatran etexilate mesylate

Inactive ingredients: acacia, dimethicone, hypromellose, hydroxypropyl cellulose, talc, and tartaric acid. The capsule shell is composed of carrageenan, FD&C Blue No. 2 (150 mg strength only), FD&C Yellow No. 6, hypromellose, potassium chloride, titanium dioxide, and black edible ink.

Other Requirements

  • Store Pradaxa at room temperature between 59°F to 86°F (15°C to 30°C). After opening the bottle, use Pradaxa within 4 months. Safely throw away any unused Pradaxa after 4 months.
  • Keep Pradaxa in the original bottle or blister package to keep it dry (protect the capsules from moisture). Do not put Pradaxa in pill boxes or pill organizers.
  • Tightly close your bottle of Pradaxa right away after you take your dose.

Keep Pradaxa and all medicines out of the reach of children.

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Reviewed by: 
Beth Bolt, RPh
Review Date: 
June 13, 2012

Last Updated:
February 18, 2013