Arimidex vs. Kanjinti

Reviewed on 7/31/2019

Are Arimidex and Kanjinti the Same Thing?

Arimidex (anastrozole) and Kanjinti (trastuzumab-anns) are used to treat breast cancer.

Arimidex is used in postmenopausal women. Arimidex is often given to women whose cancer has progressed even after taking tamoxifen (Nolvadex, Soltamox).

Kanjinti is specifically indicated for the treatment of HER2 overexpressing breast cancer and it is also used for the treatment of HER2 overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma.

Arimidex and Kanjinti belong to different drug classes. Arimidex is a nonsteroidal aromatase inhibitor and Kanjinti is a HER2/neu receptor antagonist.

Side effects of Arimidex and Kanjinti that are similar include diarrhea, nausea, headache, cough, trouble sleeping (insomnia), and weight changes.

Side effects of Arimidex that are different from Kanjinti include constipation, vomiting, upset stomach, loss of appetite, body aches and pains (back pain, bone pain, joint pain or stiffness), breast swelling/tenderness/pain, dry mouth, scratchy or sore throat, dizziness, tiredness, weakness, flushing and sweating (hot flashes/hot flushes), vaginal bleeding, hair thinning, depression, mood changes, problems with your fingers while gripping, and numbness, tingling, cold feeling, or weakness in your hand or wrist.

Side effects of Kanjinti that are different from Arimidex include chills, fever, infection, congestive heart failure, rash, low white blood cell count (neutropenia), fatigue, anemia, inflammation of the mouth and lips, upper respiratory tract infections, low blood platelets (thrombocytopenia), mucosal inflammation, runny or stuffy nose, changes in taste.

Arimidex may interact with tamoxifen or an estrogen medication (such as hormone replacement therapy, estrogen creams, or birth control pills, injections, implants, skin patches, and vaginal rings).

Kanjinti may interact with anthracycline.

What Are Possible Side Effects of Arimidex?

Common side effects of Arimidex include:

  • stomach upset,
  • nausea,
  • vomiting,
  • flushing (warmth, redness, or tingly feeling),
  • constipation,
  • headache,
  • confusion,
  • memory problems,
  • loss of balance or coordination,
  • blurred vision,
  • double vision,
  • eye redness,
  • lightheadedness,
  • dizziness,
  • spinning sensation,
  • drowsiness,
  • sleep problems (insomnia),
  • stuffy nose,
  • itching, or
  • rash, especially during the first few days as your body adjusts to this medication.

Tell your doctor if you experience serious side effects of Arimidex including:

  • fever,
  • chills,
  • flu symptoms,
  • slow heart rate,
  • feeling like you might pass out,
  • seizures (convulsions), or
  • jaundice (yellowing of your skin or eyes).

What Are Possible Side Effects of Kanjinti?

Common side effects of Kanjinti include:

  • headache,
  • diarrhea,
  • nausea,
  • chills,
  • fever,
  • infection,
  • congestive heart failure,
  • insomnia,
  • cough,
  • rash,
  • low white blood cell count (neutropenia),
  • fatigue,
  • anemia,
  • inflammation of the mouth and lips,
  • weight loss,
  • upper respiratory tract infections,
  • low blood platelets (thrombocytopenia),
  • mucosal inflammation,
  • runny or stuffy nose,
  • changes in taste

What Is Arimidex?

Arimidex (anastrozole) is a non-steroidal aromatase inhibitor used to treat breast cancer in postmenopausal women. Arimidex is often given to women whose cancer has progressed even after taking tamoxifen (Nolvadex, Soltamox). Arimidex is available in generic form.

What Is Kanjinti?

Kanjinti (trastuzumab-anns) is a HER2/neu receptor antagonist indicated for the treatment of HER2 overexpressing breast cancer and the treatment of HER2 overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma.

SLIDESHOW

Breast Cancer Awareness: Symptoms, Diagnosis, and Treatment See Slideshow

What Drugs Interact With Arimidex?

Arimidex may interact with tamoxifen or an estrogen medication (such as hormone replacement therapy, estrogen creams, or birth control pills, injections, implants, skin patches, and vaginal rings)..

What Drugs Interact With Kanjinti?

Kanjinti may interact with anthracycline. Tell your doctor all medications and supplements you use. Kanjinti is not recommended for use during pregnancy; it may harm a fetus. Females of reproductive potential are advised to use effective contraception during treatment with Kanjinti and for 7 months following the last dose. It is unknown if Kanjinti passes into breast milk or how it would affect a nursing infant. Consult your doctor before breastfeeding.

How Should Arimidex Be Taken?

The dose of Arimidex is one 1 mg tablet taken once a day. For patients with advanced breast cancer, the medication should be continued until tumor progression.

How Should Kanjinti Be Taken?

The dose and regimen of Kanjinti depends on the condition being treated.

QUESTION

A lump in the breast is almost always cancer. See Answer
Disclaimer

All drug information provided on RxList.com is sourced directly from drug monographs published by the U.S. Food and Drug Administration (FDA).

Any drug information published on RxList.com regarding general drug information, drug side effects, drug usage, dosage, and more are sourced from the original drug documentation found in its FDA drug monograph.

Drug information found in the drug comparisons published on RxList.com is primarily sourced from the FDA drug information. The drug comparison information found in this article does not contain any data from clinical trials with human participants or animals performed by any of the drug manufacturers comparing the drugs.

The drug comparisons information provided does not cover every potential use, warning, drug interaction, side effect, or adverse or allergic reaction. RxList.com assumes no responsibility for any healthcare administered to a person based on the information found on this site.

As drug information can and will change at any time, RxList.com makes every effort to update its drug information. Due to the time-sensitive nature of drug information, RxList.com makes no guarantees that the information provided is the most current.

Any missing drug warnings or information does not in any way guarantee the safety, effectiveness, or the lack of adverse effects of any drug. The drug information provided is intended for reference only and should not be used as a substitute for medical advice.

If you have specific questions regarding a drug’s safety, side effects, usage, warnings, etc., you should contact your doctor or pharmacist, or refer to the individual drug monograph details found on the FDA.gov or RxList.com websites for more information.

You may also report negative side effects of prescription drugs to the FDA by visiting the FDA MedWatch website or calling 1-800-FDA-1088.

References


ANI Pharmaceuticals, Inc. Arimidex Product Information.

https://www.arimidex.com/

Amgen. Kanjinti Product Information.

https://www.kanjinti.com/

Health Solutions From Our Sponsors