ribociclib

Pronunciation: RYE boe SYE klib

Brand: Kisqali

What is the most important information I should know about ribociclib?

Ribociclib can cause serious heart or liver problems. Call your doctor at once if you have fast or pounding heartbeats, sudden dizziness, right-sided upper stomach pain, loss of appetite, unusual bleeding or bruising, dark urine, or yellowing of your skin or eyes.

You will need frequent medical tests while taking ribociclib. Your cancer treatments may be delayed based on the results of these tests. Tell your doctor if you have signs of infection, such as fever or chills.

What is ribociclib?

Ribociclib is used to treat hormone-related breast cancer in women. Ribociclib is used only if your cancer tests negative for a protein called human epidermal growth factor receptor 2 (HER2). HER2 protein can speed the growth of cancer cells.

Ribociclib is used when the cancer has progressed or has spread to other parts of the body after other treatments.

Ribociclib is given in combination with another cancer medicine such as letrozole (Femara) or fulvestrant (Faslodex).

Ribociclib may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking ribociclib?

You should not use ribociclib if you are allergic to it, or if you also take tamoxifen.

Your doctor will perform blood tests to make sure you do not have conditions that would prevent you from safely using ribociclib.

Tell your doctor if you have ever had:

  • heart disease or prior heart attack;
  • slow heartbeats;
  • heart disease or prior heart attack;
  • long QT syndrome;
  • an electrolyte imbalance (such as low levels of calcium, magnesium, phosphorus, or potassium in your blood);
  • liver disease;
  • kidney disease; or
  • signs of infection (fever, chills).

Tell your doctor whether or not you have gone through menopause.

You may need to have a negative pregnancy test before starting this treatment.

Do not use ribociclib if you are pregnant. It could harm the unborn baby. Use effective birth control to prevent pregnancy while you are using this medicine and for at least 3 weeks after your last dose.

This medicine may affect fertility (ability to have children) in men. Talk with your doctor if you have concerns about this risk.

You should not breast-feed while using this medicine and for at least 3 weeks after your last dose.

How should I take ribociclib?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Ribociclib is given in a 28-day treatment cycle. You will take the medicine for the first 21 days of each cycle, followed by 7 days off. Your doctor will determine how long to treat you with ribociclib.

Swallow the tablet whole and do not crush, chew, or break it.

Take the medicine at the same time each morning, with or without food.

If you vomit after taking the medicine, wait until the next day to take your next dose.

Do not use a broken or damaged pill.

You may need frequent medical tests to be sure ribociclib is not causing harmful effects. Your cancer treatments may be delayed based on the results.

Store ribociclib in the original container at room temperature, away from moisture and heat.

What happens if I miss a dose?

Skip the missed dose. Take your next dose at the regular time and stay on your once-daily schedule. Do not use 2 doses in one day.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking ribociclib?

Grapefruit may interact with ribociclib and lead to unwanted side effects. Avoid the use of grapefruit products.

Avoid taking an herbal supplement containing St. John's wort at the same time you are taking ribociclib.

What are the possible side effects of ribociclib?

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • fast or pounding heartbeats, fluttering in your chest, shortness of breath, and sudden dizziness (like you might pass out);
  • low white blood cell counts --fever, mouth sores, skin sores, sore throat, cough, trouble breathing; or
  • liver problems --loss of appetite, upper stomach pain, tiredness, easy bruising or bleeding, dark urine, jaundice (yellowing of the skin or eyes).

Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.

Common side effects may include:

  • low white blood cells, infections;
  • cough;
  • nausea, vomiting;
  • diarrhea, constipation;
  • feeling tired;
  • headache; or
  • hair loss.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect ribociclib?

Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.

Ribociclib can cause a serious heart problem. Your risk may be higher if you also use certain other medicines for infections, asthma, heart problems, high blood pressure, depression, mental illness, cancer, malaria, or HIV.

Many drugs can affect ribociclib. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any medicine you start or stop using.

Where can I get more information?

Your pharmacist can provide more information about ribociclib.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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ribociclib