Medicines used to treat cancer are very strong and can have many side effects. Before taking this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
This medicine comes with a patient information insert. Read and follow the instructions carefully. Ask your doctor if you have any questions.
It is important that you take both medicines at the same time each day, preferably in the morning.
Your doctor may also give you luteinizing hormone-releasing hormone medicine together with this medicine.
Swallow the tablet whole. Do not crush, break, or chew it. You may take this medicine with or without food.
Do not eat grapefruit or drink grapefruit juice while you are using this medicine.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For oral dosage form (tablets):
For metastatic breast cancer:
Ribociclib: 600 milligrams (mg) (three 200 mg tablets) taken as a single dose, once a day for 21 days in a row, followed by 7 days without medicine. Your doctor may adjust your dose as needed and tolerated.
Letrozole: 2.5 milligrams (mg) once a day for 28 days.
Children—Use and dose must be determined by your doctor.
If you miss a dose of this medicine, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
If you miss a dose or vomit after you take this medicine, do not take another dose the same day. Wait and take your next dose when you normally would.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Store the medicine in its original package.