Answer
Volibris (ambrisentan) 5 mg and 10 mg tablets contain the azo colouring agent allura red AC aluminium lake (E129), which may cause allergic reactions.
Sources for this answer
- Volibris 5 mg film coated tabletsGlaxoSmithKline UK · emc · SmPC §4.4 Special warnings and precautions for use · Version 28Document updated
Sources checked