Answer
They should not be taken together because this treatment may reduce levothyroxine absorption; ask a pharmacist about suitable separation.
Sources for this answer
- Acidex Advance/Boots Advance/Care Advance/Numark Heartburn & Indigestion Relief Peppermint 1000 mg/200 mg/ 10 mg Oral Suspension — Current selected SmPCemc · Summary of Product Characteristics
- Acidex/Care/Numark Advance Heartburn & Indigestion Relief Aniseed 1000 mg/200 mg /10 ml Oral Suspension — Current selected SmPC