Drug interactions between erlotinib and gefitinib
Interactions between your drugs
- Erlotinib is in the drug class EGFR inhibitors.
- Erlotinib is used to treat the following conditions:
- Gefitinib is a member of the drug class EGFR inhibitors.
- Gefitinib is used to treat Non-Small Cell Lung Cancer.
Drug and food interactions
Applies to: erlotinib
Erlotinib should be taken on an empty stomach 1 hour before or 2 hours after a meal and at the same time each day unless otherwise directed by your doctor. You should also avoid grapefruit and grapefruit juice while taking erlotinib. Food and grapefruit can raise the levels of erlotinib in your body and lead to increased side effects. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.
Therapeutic duplication warnings
Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.
The recommended maximum number of medicines in the 'EGFR inhibitors' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'EGFR inhibitors' category:
Note: The benefits of taking this combination of medicines may outweigh any risks associated with therapeutic duplication. This information does not take the place of talking to your doctor. Always check with your healthcare provider to determine if any adjustments to your medications are needed.
Drug Interaction Classification
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Do not stop taking any medications without consulting your healthcare provider.