Nexium (Esomeprazole) (Nexium 20 mg) and Palbociclib: interaction and safety
This source-based reference is not a personal treatment recommendation. The relevance and management of an interaction depend on the exact products, route, dose and clinical situation.
Interaction mechanism
Increased gastric pH can substantially reduce absorption of fasting palbociclib capsules.
Clinical significance and safety
For Nexium (Esomeprazole) with Palbociclib, the formulation matters. The original palbociclib capsules should be taken with food as directed; a proton-pump inhibitor has a larger effect on capsule exposure under fasting conditions. Palbociclib tablets do not have the same acid-reducer interaction. Confirm the exact formulation and administration plan with the pharmacist instead of applying the capsule warning to every product.
Using this information
This is a source-based reference record, not a recommendation to combine, stop or change medicines. A missing interaction record does not establish safe use. A qualified healthcare professional should consider the exact products, doses, other medicines and individual health circumstances.