Answer
An oral solution can help someone who cannot swallow tablets or needs a measurable liquid preparation, but concentrations and excipients differ between brands.
Sources for this answer
- Folic acid Colonis 1mg/ml oral solutionemc · SmPC Current selected SmPC · Version 4
- Lexpec 2.5mg/5ml Oral Solutionemc · SmPC Current selected SmPC · Version 10