Iressa (Gefitinib)

Prescription medicineOnly Available By Prescription

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What if I find a lower price with another pharmacy?

We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!

Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.

To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.

Terms & Conditions of Program

  • Guaranteed lowest price is only valid at the time of sale.
  • We will only match the current advertised price.
  • Products must be identical and in stock at the time of placing an order with a licensed mail order pharmacy. They must be an online Canadian pharmacy with an address in Canada.
  • Products must be authentic in brand and size (same manufacturer, same country of manufacture, same pack size, same strength and same quantity).
  • Products must be new. We cannot match the price of any used, short expiry or expired product.
  • Price match can only be issued over the phone with our customer service team. Please note at this time we cannot offer price matching for the products Ozempic or Saxenda.
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) is a type of chemotherapy prescribed to treat a specific type of cancer. IRESSA should only be used by a doctor trained to treat cancer, called an oncologist. 

IRESSA treats metastatic non-small cell lung cancer (NSCLC) after the failure of platinum-based and docetaxel chemotherapies.

Some cancer cells express a protein on their surface called the epidermal growth factor receptor (EGFR). This protein contributes to the uncontrolled replication of cancerous cells. IRESSA works by attaching to a second protein that activates EGFR protein. By attaching to these proteins, IRESSA slows the growth of cancerous cells.


The standard IRESSA dosage is 250 mg by mouth once daily until the disease gets worse or side effects cannot be tolerated.

Take the medication exactly as prescribed by the oncologist.


The active ingredient in IRESSA is gefitinib.


IRESSA can interact with many other prescription medications. Share your entire medication list with your doctor before they prescribe you IRESSA. Drug interactions may increase or decrease the amount of IRESSA in the blood. This can make the drug ineffective or unsafe.

Some of the common drug interactions may include:

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


Chemotherapy drugs are toxic by nature. Sometimes treatment must stop when side effects become too severe. Your oncologist will review the following precautions with you:

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

Side Effects

Specific adverse reactions to IRESSA may include:

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

Buy IRESSA from Canada Drugs Direct with a valid prescription from your oncologist. Please speak with your doctor before ordering a chemotherapy medication online to make sure they agree. If they do, the IRESSA price may be less expensive online.


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.

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