<unk> , also known as STW5, is a liquid formulation of nine herbs used for functional dyspepsia and irritable bowel syndrome. A proprietary blend, it was developed in Germany in 1961 and is available (without prescription) in other countries. Named after the genus (Iberis) of one of its ingredients, it is also claimed to possess anti-inflammatory, antioxidative and free radical-inhibiting properties as well as the ability to reduce gastric acid secretion.<unk>  is a mixture of extracts from bitter candytuft (Iberis amara), angelica root (Angelicae radix), milk thistle fruit (Silybi mariani fructus), celandine herb (Chelidonium majus), caraway fruit (Carvi fructus), liquorice root (Liquiritiae radix), peppermint herb (Menthae piperitae folium), balm leaf (Melissae folium) and chamomile flower (Matricariae flos).
Iberogast
Ornge
Ipas 
Combitube
Tolibut
Archiater
Port 
Össur