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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Iressa (Gefitinib)

Sezzle
Brand

Iressa (Gefitinib)

Prescription Required

Strength

250mg

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  • Product Details

    Description

    IRESSA (Gefitinib) is a chemotherapy medication that can be prescribed to treat a certain type of lung cancer. IRESSA is approved to treat metastatic non-small cell lung cancer (NSCLC) with EGFR exon 19 deletions or exon 21 (L858R) substitution mutations.

    Directions

    The normal IRESSA dosage is 250 mg once daily until the disease becomes worse or the side effects of the drug are not tolerable.

    Take IRESSA exactly as prescribed by the oncologist.

    Do not take a missed dose if the next scheduled dose is 12 hours or less away.

    Ingredients

    The active ingredient in IRESSA is gefitinib.

    Gefitinib is a tyrosine kinase inhibitor (TKI) that blocks the activity of a cell receptor called an epidermal growth factor receptor (EGFR). EGFR contributes to the overactive replication of cancer cells, and by blocking its activity, IRESSA prevents the growth of some cancerous cells.

    Interactions

    IRESSA can interact with many other medications. Some examples include:

    • Abametapir
    • Antacids
    • Conivaptan
    • Dabrafenib
    • Enzalutamide
    • Idelalisib
    • Itraconazole
    • Mifepristone
    • Rifampicin
    • Warfarin

    Cautions

    IRESSA (Gefitinib) is for oncology use only. It can only be used under the close supervision of an oncologist.

    IRESSA is a chemotherapeutic agent and has many different side effects and toxicities. Your oncologist should monitor you for the following:

    • Dermatological (skin) toxicity
    • Gastrointestinal toxicity
    • Ocular (eye) toxicity
    • Pulmonary (lung) toxicity

    Side Effects

    IRESSA has many potential side effects. Your oncologist will review these with you before prescribing it. Some of the common ones include:

    • Anorexia
    • Decreased appetite
    • Diarrhea
    • Fatigue
    • Increased liver enzymes
    • Insomnia
    • Nausea
    • Paronychia
    • Proteinuria
    • Pruritus
    • Rash
    • Skin reactors
    • Vomiting
    • Weakness
    • Xeroderma

    Buy IRESSA online with a valid prescription from your healthcare provider. IRESSA is a hazardous medication, so ensure that your doctor knows your plan for obtaining IRESSA online. Purchasing online may be a lower IRESSA price.

    References

    1. Inspra [package insert].New York, NY: Pfizer; 2002.


    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 5477

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