Lapatinib (Cont.)

When and How to Take Lapatinib

General considerations for when and how to take lapatinib include the following:
 
  • Lapatinib comes in tablet form and is taken by mouth once daily.
     
  • The drug should be taken at least an hour before or one hour after a meal.
     
  • Lapatinib should be taken at the same time each day to maintain an even level in your blood.
     
  • For the medication to work properly, it must be taken as prescribed. Lapatinib will not work if you stop taking it.
     

Dosing Information for Lapatinib

The dose of lapatinib that your healthcare provider recommends will vary, depending on a number of factors, including:
 
  • Other medications you may be taking
  • Other medical conditions you may have.
     
As is always the case, do not adjust your lapatinib dose unless your healthcare provider specifically instructs you to do so.
 
(Click Lapatinib Dosing for more information.)
 

Lapatinib Side Effects

As with any medicine, side effects are possible with lapatinib. However, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
 
Common side effects of lapatinib include but are not limited to:
 
 
(Click Side Effects of Lapatinib for more information.)
 
(Lapatinib Continued: Page 3)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;