Drug Interactions between lorlatinib and pralsetinib
This report displays the potential drug interactions for the following 2 drugs:
- lorlatinib
- pralsetinib
Interactions between your drugs
lorlatinib pralsetinib
Applies to: lorlatinib and pralsetinib
Lorlatinib may reduce the blood levels of pralsetinib in some patients, which may make the medication less effective. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Drug and food interactions
lorlatinib food
Applies to: lorlatinib
Do not consume grapefruit or grapefruit juice during treatment with lorlatinib. Grapefruit juice can significantly increase the blood levels and effects of lorlatinib, which may result in a greater risk of side effects. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
pralsetinib food
Applies to: pralsetinib
Pralsetinib should be taken on an empty stomach, at least 2 hours after or 1 hour before a meal. Do not consume grapefruit, grapefruit juice, or any supplements that contain grapefruit extract during treatment with pralsetinib unless directed otherwise by your doctor. Grapefruit juice can increase the blood levels of pralsetinib. This may increase the risk and/or severity of serious side effects such as lung problems, high blood pressure, liver problems, bleeding, fatigue, muscle pains, or constipation. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications 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.
Multikinase inhibitors
Therapeutic duplication
The recommended maximum number of medicines in the 'multikinase inhibitors' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'multikinase inhibitors' category:
- lorlatinib
- pralsetinib
Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.
See also
Report options
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 interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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