Answer
It depends on the cause and formulation. Oesophageal narrowing or delayed emptying is a contraindication, and the oral solution must not be used when liquids are difficult to swallow or aspiration is a risk.
Sources for this answer
- Alendronic Acid 70 mg tablets — Current selected SmPCemc · Summary of Product Characteristics
- Alendronic Acid 70mg Oral Solution — Current selected SmPCemc · Summary of Product Characteristics