Drug interactions between fulvestrant and lapatinib
Interactions between your drugs
There were no interactions found in our database between fulvestrant and lapatinib - however, this does not necessarily mean no interactions exist. Always consult with your doctor or pharmacist.
- Fulvestrant is in the following drug classes: estrogen receptor antagonists, hormones/antineoplastics.
- Fulvestrant is used to treat the following conditions:
- Lapatinib is a member of the following drug classes: EGFR inhibitors, HER2 inhibitors.
- Lapatinib is used to treat the following conditions:
Drug and food interactions
Applies to: lapatinib
Take lapatinib on an empty stomach 1 hour before or 1 hour after a meal unless otherwise directed by your doctor. This will make it easier for your body to absorb the medication. The lapatinib dose is administered once daily and should not be divided. The usual dose of lapatinib is equal to 5 tablets. You may swallow each tablet one at a time, but take the entire lapatinib dose at the same time each day. If you are receiving therapy with lapatinib you should be advised to avoid grapefruits and grapefruit juice. Grapefruit can raise the levels of lapatinib in your body and lead to dangerous side effects.
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
Drug Interaction Classification
|Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.|
|Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.|
|Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.|
|No information available.|
Do not stop taking any medications without consulting your healthcare provider.