Tracleer

DRUG DESCRIPTION

Bosentan is an endothelin receptor antagonist, belonging to a class of highly substituted pyrimidine derivatives, with no chiral centers. It is designated chemically as 4-tert-butyl-N-[6-(2-hydroxy-ethoxy)-5-(2-methoxy-phenoxy)-[2,2??]-bipyrimidin-4-yl]- benzenesulfonamide monohydrate and has the following structural formula:

TRACLEER (bosentan) Structural Formula Illustration

Bosentan has a molecular weight of 569.64 and a molecular formula of C27H29N5O6SH2O. Bosentan is a white to yellowish powder. It is poorly soluble in water (1.0 mg/100 mL) and in aqueous solutions at low pH (0.1 mg/100 mL at pH 1.1 and 4.0; 0.2 mg/100 mL at pH 5.0). Solubility increases at higher pH values (43 mg/100 mL at pH 7.5). In the solid state, bosentan is very stable, is not hygroscopic and is not light sensitive.

Tracleer (bosentan) is available as 62.5 mg and 125 mg film-coated tablets for oral administration, and contains the following excipients: corn starch, pregelatinized starch, sodium starch glycolate, povidone, glyceryl behenate, magnesium stearate, hydroxypropylmethylcellulose, triacetin, talc, titanium dioxide, iron oxide yellow, iron oxide red, and ethylcellulose. Each Tracleer 62.5 mg tablet contains 64.541 mg of bosentan, equivalent to 62.5 mg of anhydrous bosentan. Each Tracleer 125 mg tablet contains 129.082 mg of bosentan, equivalent to 125 mg of anhydrous bosentan.

What are the possible side effects of bosentan (Tracleer)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • nausea, stomach pain, loss of appetite;
  • dark urine, clay-colored stools; or
  • jaundice (yellowing of the skin or eyes).

Less serious side effects may include:

  • headache;
  • flushing;
  • swelling of the feet, ankles, or...

Read All Potential Side Effects and See Pictures of Tracleer

What are the precautions when taking bosentan (Tracleer)?

Before taking bosentan, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, anemia.

This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages since they can increase the effects of dizziness and also increase the risk of serious liver problems.

This medication must not be used during pregnancy. It may harm an unborn baby. If you become pregnant or...

Read All Potential Precautions of Tracleer


Tracleer Consumer (continued)

SIDE EFFECTS: See also Warning section.

Dizziness, flushing, upset stomach, or tiredness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur: fast/pounding heartbeat, extreme tiredness, swelling of the ankles/feet, sudden/unexplained weight gain.

Tell your doctor immediately if any of these rare but very serious side effects occur: fainting, shortness of breath, coughing up blood.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Before taking bosentan, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, anemia.

This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages since they can increase the effects of dizziness and also increase the risk of serious liver problems.

This medication must not be used during pregnancy. It may harm an unborn baby. If you become pregnant or think you may be pregnant, tell your doctor immediately. Women of child-bearing age must have a negative pregnancy test before starting this medication and monthly while taking it. Consult your doctor for more details and to discuss reliable forms of birth control. It is recommended that men and women using this medication use 2 effective forms of birth control (e.g., condoms and diaphragm with spermicide) while taking this medication. (See also Drug Interactions section.)

It is not known whether this medication passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this medication is not recommended. Consult your doctor before breast-feeding.


Tracleer Patient Information Including Side Effects

Brand Names: Tracleer

Generic Name: bosentan (Pronunciation: boe SEN tan)

  • What is Bosentan (Tracleer)?
  • What are the possible side effects of bosentan (Tracleer)?
  • What is the most important information I should know about bosentan (Tracleer)?
  • What should I discuss with my healthcare provider before taking bosentan (Tracleer)?
  • How should I take bosentan (Tracleer)?
  • What happens if I miss a dose (Tracleer)?
  • What happens if I overdose (Tracleer)?
  • What should I avoid while using bosentan (Tracleer)?
  • What other drugs will affect bosentan (Tracleer)?
  • Where can I get more information?

What is Bosentan (Tracleer)?

Bosentan prevents thickening of the blood vessels, especially those in the lungs and heart. Bosentan also lowers blood pressure in your lungs, helping your heart pump blood more efficiently.

Bosentan is used to treat pulmonary arterial hypertension (PAH). It improves your ability to exercise and prevents your condition from getting worse.

Bosentan may also be used for other purposes not listed in this medication guide.

What are the possible side effects of bosentan (Tracleer)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • nausea, stomach pain, loss of appetite;
  • dark urine, clay-colored stools; or
  • jaundice (yellowing of the skin or eyes).

Less serious side effects may include:

  • headache;
  • flushing;
  • swelling of the feet, ankles, or legs;
  • dizziness;
  • upset stomach;
  • fatigue; or
  • itching.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about bosentan (Tracleer)?

This medication can cause birth defects in an unborn baby. Do not use if you are pregnant. Tell your doctor right away if you become pregnant during treatment. Use an effective barrier form of birth control (such as a condom or diaphragm with spermicide gel or inserts). Hormonal forms of contraception (such as birth control pills, injections, implants, skin patches, and vaginal rings) may not be effective enough to prevent pregnancy during your treatment.

Your doctor may have you take a pregnancy test before you start using this medicine, to make sure you are not pregnant. You may also be re-tested each month during your treatment.

Do not use this medication if you are allergic to bosentan, or if you are also taking cyclosporine (Sandimmune, Neoral, Gengraf), glyburide (Micronase, DiaBeta, Glynase Pres Tab), or HIV/AIDS medication that contains lopinavir or ritonavir (Kaletra, Norvir).

Bosentan can cause severe liver problems. Symptoms include nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes). Call your doctor at once if you have any of these symptoms. Your liver function will need to be tested before you start taking bosentan, and again each month during your treatment.

Do not stop taking bosentan without first talking to your doctor. You may need to use less and less before you stop the medication completely.

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