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Tukysa (Tucatinib)

Prescription requiredOnly Available By Prescription
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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.


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Tukysa is a breast cancer treatment medication available by prescription. It is used to treat metastatic breast cancer when it is HER-2 positive or advanced locally, and Tukysa may also be prescribed to treat metastatic colorectal cancer. Tucatinib works by inhibiting the intracellular domain of HER2 receptor and this medication is often taken in conjunction with trastuzumab or capecitabin to complement their effectiveness in suppressing the growth of the cancer. Buy Tukysa from Canada and Canpharm and get the lowest price on it.

What is Metastatic Cancer?

When a cancer has metastasized it has mas moved to another part of the body from where it started as the primary tumor. When cancer is now located in a separate part of the body it is referred to as metastatic cancer.

Fact Table
Formula C26H24N8O2
License FDA approved April 2020
Bioavailability 57%
Legal Status Prescription only (Rx-only)
Chemical Name Tucatinib
Elimination Half-life 10.1 hours
Dosage (Strength) 50 mg and 150 mg tablets
Pregnancy Advice Not recommended
Brands Tukysa
Protein Binding 97.3%
PubChem CID 135565082
MedlinePlus Number A620034
ChEBI ID Not listed
ATC Code L01EH03
DrugBank ID DB11741
KEGG ID D11317
Routes of Administration Oral

Buy Tukysa (Tucatinib) online from online Canadian Pharmacy |


Standard dosage for Tukysa 150mg is to take 2x daily at 12 hour intervals. Medication can be taken with our without food but should be swallowed whole. Your doctor may change dosage based on treatment response, and you should always take this medication exactly as indicated in your Tukysa package insert.


The active ingredient in Tukysa is Tucatinib.


Let your doctor know of any history of liver disease before starting on Tukysa

Medication use may affect fertility for either gender

Do not breastfeed while using Tukysa, and for at least 1 week after your last dose

Patients who vomit shortly after taking Tukysa should not take another dose, and instead wait until your next scheduled dose time to take the medication

Frequent blood tests may be required to check liver function while using Tukysa

Store at room temperature and away from moisture and heat

Dispose of any unused tablets 3 months after first opening medication bottle


Negative drug interactions may occur between Tukysa and other Rx medications, including amoxicillin, clavulanate, lorazepam, diphenhydramine, bupropion, capecitabine, cephalexin, ciclopirox, docusate, duloxetine, furosemide, gabapentin, simethicone, gentamicin, trastuzumab, hydrochlorothiazide, ketorolac, levothyroxine, loperamide, simethicone, oxycodone

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

Side Effects

Tukysa side effects may occur, and some users may experience diarrhea, rash, blisters or ulcers in mouth, appetite loss, stomach pain, or jaundiced skin. If side effects are experienced you may want to discontinue use and meet with a doctor again to discuss breast cancer treatment medication alternatives.

Frequently Asked Questions about Tukysa

How Effective is Tukysa?

Tukysa is a medication used to complement other cancer treatment medications with a specific aim to slow the growth of metastasized cancer, and as such, it cannot be evaluated for effectiveness on its own. Treatment outcomes will always vary depending on the physiology and overall health of the patient.

Is Tukysa Chemotherapy?

No, this is an oral medication that is used to slow the growth of cancer and improve the treatment outcomes made possible by chemotherapy and other cancer treatment approaches.

Who makes Tukysa?

Tukysa is manufactured by Seagen Pharmaceuticals.

What is the generic name for Tukysa?

The generic name for this medication is Tucatinib.

What type of drug is Tukysa?

Tukysa is a tyrosine kinase inhibitor class drug.

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.