Answer
Medicines that raise stomach pH, including proton-pump inhibitors, H2 blockers and antacids, have not shown a clinically relevant effect on combined alectinib and M4 exposure. Still include them on your medicines list.
Sources for this answer
- Alecensa 150 mg Hard Capsules — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.