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PROMACTA
Bleeding disorders
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Drug Name:

PROMACTA Rx

Generic Name and Formulations:
Eltrombopag (as olamine) 25mg, 50mg; tabs.

Company:
GlaxoSmithKline Pharmaceuticals



Therapeutic Use:

Indications for PROMACTA:

Thrombocytopenia due to chronic immune (idiopathic) thrombocytopenic purpura (ITP) in adults who have had an insufficient response to corticosteroids, immunoglobulins, or splenectomy.

Adult Dose for PROMACTA:

Take on empty stomach. Initially 50mg once daily. Moderate to severe hepatic impairment or East Asian ancestry: initially 25mg once daily. Titrate to maintain platelet count ≥50x109/L; max 75mg once daily. Adjust dose based on platelet count: see literature.

Children's Dose for PROMACTA:

Not recommended.

Pharmacological Class:

Thrombopoietin receptor agonist.

Warnings/Precautions:

Monitor CBC, platelet count, and peripheral blood smears for cytopenias and abnormal morphologies; discontinue if no increase in platelet count occurs after 4 weeks at max dose, or if excessive increase in platelet count occurs (eg, >400x109/L), or if evidence of bone marrow fibrosis occurs (eg, cytopenias, nucleated RBCs). Monitor liver function closely before, during, and after treatment (see literature); discontinue if ALT >3xULN and is progressive or persistent for ≥4 weeks, or if it occurs with evidence of hepatic injury; reinitiation of therapy: not recommended; if restarted, use lower dose and monitor carefully. Do baseline eye exam; monitor for cataracts. Thromboembolism risk factors. Myelodysplastic syndromes. Renal impairment. Pregnancy (Cat.C). Nursing mothers: not recommended.

Interactions:

Do not take within 4 hours of food/drugs containing polyvalent cations (eg, Fe+2, Ca+2, Al+3, Mg+2, Se+2, Zn+2). May potentiate substrates of organic anion transporter polypeptide 1B1 (eg, benzylpenicillin, most statins, methotrexate, nateglinide, repaglinide, rifampin); monitor and consider reducing their doses. May be potentiated by strong inhibitors of CYP1A2 (eg, ciprofloxacin, fluvoxamine) or CYP2C8 (eg, gemfibrozil, trimethoprim), and with moderate or strong inhibitors of UGT1A1 or UGT1A3.

Adverse Reactions:

Nausea, vomiting, menorrhagia, myalgia, paresthesia, cataract, ecchymosis, thrombocytopenia, increased ALT/AST, conjunctival hemorrhage, increased risk of hematologic malignancies; thrombotic events with excessive increases in platelet counts; worsened thrombocytopenia after discontinuation.

Note:

Note: Physicians, pharmacies, and patients must enroll in Promacta Cares program. Register pregnant patients taking eltrombopag by calling (888) 825-5249.

How Supplied:

Tabs—30

PROMACTA

  • 25mg tablets (Qty:30)
  • appx. price $3071.00
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