Answer
Iloprost is the active therapeutic substance; iloprost trometamol is the salt form used in these preparations to provide it.
Sources for this answer
- Iloprost 10 micrograms/ml nebuliser solution Zentivaemc · SmPC Current selected SmPC · Version 8
- Iloprost Waymade 20 mcg concentrate for solution for infusionemc · SmPC Current selected SmPC · Version 2