Iberogast, also known as STW 5, is a prokinetic liquid formulation of nine herbs indicated for Irritable Bowel Syndrome
Irritable bowel syndrome
Irritable bowel syndrome is a diagnosis of exclusion. It is a functional bowel disorder characterized by chronic abdominal pain, discomfort, bloating, and alteration of bowel habits in the absence of any detectable organic cause. In some cases, the symptoms are relieved by bowel movements...

 (IBS) and dyspepsia
Dyspepsia , also known as upset stomach or indigestion, refers to a condition of impaired digestion. It is a medical condition characterized by chronic or recurrent pain in the upper abdomen, upper abdominal fullness and feeling full earlier than expected when eating...

. A proprietary blend, it was developed in Germany in 1961 and is available (without prescription) in other countries. Named after the genus (Iberis
Iberis is a genus of flowering plant belonging to the family Brassicaceae. It comprises herbs and subshrubs of the Old World. These species are commonly known as candytufts...

) of one of its ingredients, it has been the subject of several clinical studies on its effect on the intestine. It has been shown to ameliorate symptoms of IBS and dyspepsia by improving motility via increased fundic accommodation and increased tonicity
Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an external solution...


In clinical trials, STW 5 has been proven effective in protecting against inflammatory lesions in oesophagitis. Researchers have stated that the results warrant further research of its potential therapeutic usefulness in GERD
In Norse mythology, Gerðr is a jötunn, goddess, and the wife of the god Freyr. Gerðr is attested in the Poetic Edda, compiled in the 13th century from earlier traditional sources; the Prose Edda and Heimskringla, written in the 13th century by Snorri Sturluson; and in the poetry of skalds...



Iberogast is a tincture
A tincture is an alcoholic extract or solution of a non-volatile substance . To qualify as a tincture, the alcoholic extract is to have an ethanol percentage of at least 40-60%...

 of the following herbs:
  • German Chamomile (Matricaria recutita) flower
  • Clown's Mustard (Iberis amara) plant
  • Angelica (Angelica archangelica) root and rhizome
  • Caraway (Carum carvi) fruit
  • Lemon Balm (Melissa officinalis) leaf
  • Celandine (Chelidonium majus) aerial part
  • Licorice (Glycyrrhiza glabra) root
  • Peppermint (Mentha x piperita) leaf

External links

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