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PROMACTA
Anemias
Bleeding disorders
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Drug Name:

PROMACTA Rx

Generic Name and Formulations:
Eltrombopag (as olamine) 12.5mg, 25mg, 50mg, 75mg; tabs.

Company:
GlaxoSmithKline



Therapeutic Use:

RECENT UPDATES

10/07/14
Approved for severe aplastic anemia.

Indications for PROMACTA:

Severe aplastic anemia in adults who have had insufficient response to immunosuppressive therapy.

Adult Dose for PROMACTA:

Take on empty stomach. Initially 50mg once daily. Hepatic impairment or East Asian ancestry: initially 25mg once daily. Titrate dose by 50mg every 2 weeks as needed to maintain platelet count ≥50x109/L; max 150mg daily. Monitoring, dose adjustment, and discontinuation: see full labeling.

Children's Dose for PROMACTA:

Not established.

Pharmacological Class:

Thrombopoietin receptor agonist.

Warnings/Precautions:

Increased risk of hepatic decompensation in chronic hepatitis C, when concomitant with interferon and ribavirin; discontinue Promacta if antiviral therapy is discontinued. Monitor liver function prior to initiation, every 2 weeks during dose adjustments, and monthly after stabilized (see full labeling); discontinue if ALT ≥3xULN and is progressive or persistent for ≥4 weeks, or if occurs with increased bilirubin, or evidence of hepatic injury/decompensation; reinitiate therapy if benefit outweighs risk; if restarted, monitor carefully. Increased risk of thromboembolism; do not use to normalize platelet counts. Do baseline eye exam; monitor for cataracts. Renal impairment. Pregnancy (Cat.C). Nursing mothers: not recommended.

Interactions:

Do not take within 4hrs of food/drugs containing polyvalent cations (eg, Fe+2, Ca+2, Al+3, Mg+2, Se+2, Zn+2). Potentiate substrates of OATP1B1 (eg, most statins, bosentan, ezetimibe, glyburide, olmesartan, valsartan, repaglinide, rifampin) or BCRP (eg, imatinib, irinotecan, lapatinib, methotrexate, mitoxantrone, sulfasalazine, topotecan); monitor and consider reducing their doses. Antagonized by lopinavir/ritonavir.

Adverse Reactions:

Nausea, diarrhea, fatigue, cough, headache, pain, dyspnea, pyrexia, dizziness, febrile neutropenia, ecchymosis, muscle spasms, arthralgia, rhinorrhea; elevated hepatic enzymes, hepatotoxicity, hemorrhage, thrombotic complications from excessive increases in platelet counts, cataracts.

How Supplied:

Tabs—30

PROMACTA

  • 50mg tablets (Qty:30)
  • appx. price $5792.00
GoodRx

RECENT UPDATES

10/07/14
Approved for severe aplastic anemia.

Indications for PROMACTA:

Thrombocytopenia in adults with chronic immune (idiopathic) thrombocytopenic purpura (ITP) who have had an insufficient response to corticosteroids, immunoglobulins, or splenectomy. Thrombocytopenia in adults with chronic hepatitis C to allow initiation and maintenance of interferon-based therapy. Limitations of use: should be used only in ITP whose degree of thrombocytopenia and clinical condition increase the risk of bleeding; or, in chronic hepatitis C whose degree of thrombocytopenia prevents starting or limiting ability to maintain interferon-based therapy. Safety and efficacy not established in combination with direct-acting antiviral agents without interferon for chronic hepatitis C infection.

Adult Dose for PROMACTA:

Take on empty stomach. ITP: initially 50mg once daily. Hepatic impairment or East Asian ancestry: initially 25mg once daily. East Asian ancestry with hepatic impairment: consider initiating at 12.5mg once daily. Titrate to maintain platelet count ≥50x109/L; max 75mg once daily. Chronic hepatitis C-associated thrombocytopenia: initially 25mg once daily. Titrate dose by 25mg every 2 weeks as needed to achieve target platelet counts; max 100mg/day. Monitoring, dose adjustment, and discontinuation: see full labeling.

Children's Dose for PROMACTA:

Not established.

Pharmacological Class:

Thrombopoietin receptor agonist.

Warnings/Precautions:

Increased risk of hepatic decompensation in chronic hepatitis C, when concomitant with interferon and ribavirin; discontinue Promacta if antiviral therapy is discontinued. Monitor liver function prior to initiation, every 2 weeks during dose adjustments, and monthly after stabilized (see full labeling); discontinue if ALT ≥3xULN and is progressive or persistent for ≥4 weeks, or if occurs with increased bilirubin, or evidence of hepatic injury/decompensation; reinitiate therapy if benefit outweighs risk; if restarted, monitor carefully. Increased risk of thromboembolism; do not use to normalize platelet counts. Do baseline eye exam; monitor for cataracts. Renal impairment. Pregnancy (Cat.C). Nursing mothers: not recommended.

Interactions:

Do not take within 4hrs of food/drugs containing polyvalent cations (eg, Fe+2, Ca+2, Al+3, Mg+2, Se+2, Zn+2). Potentiate substrates of OATP1B1 (eg, most statins, bosentan, ezetimibe, glyburide, olmesartan, valsartan, repaglinide, rifampin) or BCRP (eg, imatinib, irinotecan, lapatinib, methotrexate, mitoxantrone, sulfasalazine, topotecan); monitor and consider reducing their doses. Antagonized by lopinavir/ritonavir.

Adverse Reactions:

Nausea, diarrhea, vomiting, infections, increased ALT/AST, myalgia, pain, pharyngitis, paresthesia, rash, anemia, pyrexia, fatigue, headache, decreased appetite, asthenia, insomnia, cough, pruritus, chills, alopecia, peripheral edema; hepatotoxicity, hemorrhage, thrombotic complications from excessive increases in platelet counts, cataracts.

How Supplied:

Tabs—30

PROMACTA

  • 50mg tablets (Qty:30)
  • appx. price $5792.00
GoodRx

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