Used for Cancer

View KANJINTI savings options available to you including Manufacturer Coupons, Rx Advantage Savings Card, Canadian Prescription Savings or KANJINTI Patient Assistance Program.

Programs are suitable for individuals who want to buy KANJINTI without insurance, with insurance or for those who are underinsured. You can pay as little as $0 per fill.*

Manufactured by Amgen Inc.

*Applicable to Drug Coupons & Patient Assistance Programs

This content is intended for US audiences only

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    Rx Advantage Card

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    Save up to 90%

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    Drug Coupons

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    Pay as little as $0

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    Patient Assistance Programs

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Jamie Winn NowPatientGreen tick
Updated on 26 Apr 2024

Learn more about KANJINTI



KANJINTI is the brand name for trastuzumab-ann subcutaneous injection and IV infusion.

What dosages is KANJINTI available in?

What dosages is KANJINTI available in?

KANJINTI is available as 150 mg and 420 mg used for injection.

What is KANJINTI used for?

What is KANJINTI used for?

KANJINTI is a monoclonal antibody that is used to treat:

  • HER2-positive, breast cancers – IV and SQ injections
  • HER2-positive, metastatic stomach cancer – IV injection only
How does KANJINTI work?

How does KANJINTI work?

KANJINTI is a monoclonal antibody that acts as a human epidermal growth factor receptor 2 (HER2) inhibitor. It blocks a specific protein in the body that’s important for cell growth called HER2. HER2 is found on both normal and cancer cells. Cancer cells usually have more HER2 proteins than normal cells. This can cause cancer cells to grow more quickly than normal cells. When HER2 is blocked by KANJINTI, cancer cells can’t grow and spread as well.

How do I take KANJINTI?

How do I take KANJINTI?

KANJINTI dose for IV infusion is based on weight and given over 30 to 90 minutes. The dose for a subcutaneous injection is not based on weight.

Is it safe for me to take KANJINTI?

Is it safe for me to take KANJINTI?

KANJINTI is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you.

KANJINTI Common Side Effects

KANJINTI Common Side Effects

Common side effects of KANJINTI:

  • Body and joint pain
  • Weakness
  • Fever
  • Nausea
  • Chills
  • Headache
  • Cough
  • Diarrhea
  • Vomiting
  • Infection
KANJINTI Serious Side Effects

KANJINTI Serious Side Effects

Serious side effects are rare with KANJINTI. Contact your healthcare provider immediately if you experience any of the following.

  • Heart problems: chest pain, racing heartbeat, shortness of breath that usually worsens with activity or while lying flat, swelling of your legs or feet, sudden weight gain, fatigue
  • Serious infusion reactions: trouble breathing, itching or hives, flushing, swelling, chest pain, fast heartbeat, dizziness, fainting
  • Lung problems: shortness of breath, trouble breathing
    Serious infections (when receiving in combination with chemotherapy): repeated fevers, chills, sweating, cough, trouble breathing, severe diarrhea, vomiting, painful or frequent urination
Effects of other drugs, drug classes and over-the-counter products on KANJINTI

Effects of other drugs, drug classes and over-the-counter products on KANJINTI

The following medications may interact with KANJINTI:

  • Patients who receive anthracycline after stopping trastuzumab products may be at increased risk of cardiac dysfunction because of KANJINTI’s long washout period based. If possible, physicians should avoid anthracycline-based therapy for up to 7 months after stopping KANJINTI products
  • If anthracyclines are used, the patient’s cardiac function should be monitored carefully
Who makes KANJINTI?

Who makes KANJINTI?

Amgen Inc.

Is KANJINTI safe in pregnancy?

Is KANJINTI safe in pregnancy?

KANJINTI can cause fetal harm when administered to a pregnant woman. Pregnant women and females of reproductive that take KANJINTI during pregnancy or within 7 months prior to conception can result in fetal harm. Contact your healthcare provider with a known or suspected pregnancy. Females who can become pregnant should use effective contraception during treatment and for 7 months following the last dose of KANJINTI.


What to do if you missed your KANJINTI dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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Medical Disclaimer

NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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