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Keytruda (Pembrolizumab)

Prescription requiredOnly Available By Prescription
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.


Keytruda is a cancer immunotherapy medication available by prescription and used to treat early-stage cancers and for TNBC treatment of triple-negative breast cancer. Pembrolizumab may also be prescribed for other early-stage cancers, including cervical cancer, kidney cancer, and melanoma or esophageal cancer. It works by blocking the PD-1 cell protein pathway so that cancer cells aren’t able to avoid immune system T cells that will fight cancer cells if they can encounter them. Keytruda may also be used in conjunction with chemotherapy treatment. Buy Keytruda from Canpharm and get the lowest Keytruda cost.

What is Triple-Negative Breast Cancer?

Triple Negative Breast Cancer involves a more aggressive type of cancerous tumor in the breast that has a faster growth rate along with a higher risk of metastasis and recurrence. The triple negative distinction means that the cancer does not have any of the 3 receptors commonly found on breast cancer cells. It is estimated to account for 10 to 20% of all breast cancer cases.

Fact Table
Formula C6534H10004N1716O2036S46
License US DailyMed
Bioavailability 64%
Legal status Prescription Drugs
Chemical Name pembrolizumab
Elimination half-life 26 days
Dosage (Strength) 100mg/4mL (25mg/mL)
Pregnancy Consult Doctor
Brands Keytruda
Protein binding 87%
PubChem CID Not Assigned
MedlinePlus a614048
ChEBI Not Assigned
ATC code L01FF02
DrugBank DB09037
KEGG D10574
Routes of administration Intravenous

Buy Keytruda (Pembrolizumab) online from online Canadian Pharmacy |


Dosage guidelines for Keytruda immunotherapy will vary based on the type of cancer being treated, with correct dosage and frequency indicated in your prescription.


The active ingredient in Keytruda is Pembrolizumab.


Let your doctor know of any history of immune-mediated pneumonia, immune-mediated colitis, immune-mediated hepatitis, immune-mediated endocrinopathies, immune-mediated nephritis with renal dysfunction, immune-mediated dermatologic adverse reaction, multiple myeloma, myasthenia gravis, thyroid disease, or solid organ transplant rejection before starting on Keytruda.

Older adults may be more prone to having side effects from using Keytruda

Be aware of the medication's expiry date


Negative drug interactions may occur between Keytruda and other Rx medications, including betamethasone, budesonide, cortisone, deflazacort, dexamethasone, dimethyl fumarate, diroximel fumarate, efgartigimod alfa, hydrocortisone, lenalidomide, methylprednisolone, monomethyl fumarate, pomalidomide, prednisolone, prednisone, thalidomide, triamcinolone.

Let your doctor know of all medications you are currently taking before getting a prescription and proceeding to buy Keytruda online.

Side Effects

Side effects from using Keytruda may occur, and some users may experience nausea, vomiting, diarrhea, stomach upset or pain, fever, tingling sensations, or urination pain or burning. If side effects are experienced, you may want to stop use and meet with a doctor again to discuss early-stage cancer treatment medication alternatives.

Frequently Asked Questions about Keytruda

Is a Biomarker test needed before taking Keytruda?

A biomarker test will be required for most people being considered for Keytruda as part of their early-stage cancer treatment. Different biomarkers identified by the test can help doctors assess the effectiveness of varying approaches to using Keytruda, especially when it is going to be used alongside chemotherapy.

Does Using Keytruda create additional health risks?

Keytruda can cause the immune system to attack normal organs and tissues in the body. It can affect the way they work and have severe or life-threatening problems with the organs resulting from using Keytruda. They may also occur after treatment has ended.

How Do I Take Keytruda?

Keytruda will be given at 3 or 6-week intervals depending on dosage, and this medication is always administered under a doctor's supervision and through an intravenous (IV) line for over 30 minutes.

Is it Safe to Take Keytruda during pregnancy?

No, Pembrolizumab may harm an unborn baby and if you are pregnant, you will not be approved to start on this medication. You should also use effective birth control during treatment and for 4 months after your last dose of Keytruda.

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.