Palbociclib is a CDK4/6 inhibitor that is used specifically for HR /HER2breast cancer. Well, it works by sort of stopping the cells from moving on to the next phase in their life cycle. There are different sizes, like 75 mg, 100 mg, and 125 mg.
The usual and standard dose is 125 mg, and you take it every day. So, you take it for about three weeks out of a month. Each cycle means you’re using those 125 mg capsules, and they come in bottles with 21 of them.
It works by basically keeping those kinases, which are these proteins that control cell cycle stages, from doing their thing. By keeping those kinases in check, palbociclib helps to slow down cancer cell growth that depends on that regulatory process. It’s really important to stick with the dosing, which is 125 mg once a day for the first three weeks of every four-week period, because that’s what they’ve found works in the studies.
They give you the medication in bottles with just the right number of capsules so you can keep to that schedule.
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