Over 55 years of success

The combination of 9 natural herbs used in Iberogast® was researched and developed in the late 1950s, at a company called Steigerwald. Iberogast® has been helping people get fast, effective relief from digestive symptoms ever since3.

History of old Iberogast packs in Germany

Using science to improve lives

For more than 55 years Iberogast® has helped people with digestive issues and had a permanent place in people's homes.

With the combination of nine different herbs, Iberogast® has helped generations of people with various types of stomach ailments always acting swiftly and getting to the root of the problem. However, it was only through intensive research that the power of the nine natural herbs used in Iberogast® was truly understood7.

Today Iberogast® is available in over 30 different countries around the globe and has been owned by Bayer since 2013. Iberogast® was originally developed in Germany by the German company Steigerwald in Darmstadt.

Bayer has extensive pharmaceutical expertise, and manufactures extremely effective, high quality medicines. When it comes to making Iberogast®, Bayer uses the same rigorous manufacturing and quality standards applied to all its medicines. This approach, paired with the power of nature, means Iberogast® is a well-tolerated, effective, state of the art solution10.

Over 55 years of Iberogast®

But what unsuspected forces are lying in the combination of the "Fantastic Nine" medicinal plants actually only became clear over the decades - through intensive research.

historic old Iberogast pack 60s


Iberogast® is born

The combination of 9 natural herbs used in Iberogast® was researched and developed in the late 1950s, at a German company called Steigerwald. By the early 1960s, Iberogast® was born. They used the existing extensive medicinal plant knowledge to expand it further to find the right composition and the mixing ratio of the selected nine natural plants. Quality standards and controls were defined and set standards for future production. Initially, Iberogast® was manufactured by hand, right from extraction and blending to filling and packing. This was a painstaking process.

historic old Iberogast pack 70s


Expand production

Scientific research into Iberogast® continued from the outset. In the 1970s, the aim was to make Iberogast®'s manufacturing process more effective and to expand production so more people could benefit from the treatment. Work was also done to make more doctors aware of Iberogast®.

historic old Iberogast pack 80s


Dual-action effect is discovered

In 1986, one of Iberogast®'s key characteristics was discovered: its dual-action effect. This means that Iberogast® has a different effect on the gastrointestinal tract19. It relaxes over-active stomach muscles and stimulates stomach muscles that are moving too slowly or weakly to relieve multiple digestive symptoms. This discovery led to a variety of new research activities and important publications. From the mid 1980s, additional research was carried out and proved Iberogast®'s extraordinary safety and tolerance.

historic old Iberogast pack 90s


Multi-target effect is discovered

In the mid 1990s, Iberogast®'s individual modes of action were researched. This led to its multi-target effect being found. Each of the nine specially-selected herbal plant extracts in Iberogast® have their own active ingredients that target different causes for digestive issues. Combined in Iberogast®, they reinforce each other and work together “synergistically” to relieve a range of digestive symptoms at the same time2. The treatment's efficacy was further investigated too, based on new international guidelines that had recently been introduced. This was the start to make Iberogast® today the most researched herbal gastrointestinal medicine worldwide7.

historic old Iberogast pack millenium


Research continues

The new millennium brought fresh discoveries. In 2003, new research uncovered Iberogast®'s ability to have effects in different specific regions of the gastrointestinal tract: it can relax the fundus in the upper part of the stomach and stimulate the antrum in the lower part19. The wider scientific community were immediately interested in this groundbreaking discovery. Further studies followed; in 2006 the effect of Iberogast® against Inflammation14 and motility disorders in the intestine confirmed11. The following year a positive effect on irritable bowel syndrome16 and inflammatory bowel disease identified14.

historic old Iberogast pack from 2010


From strength to strength

Iberogast®'s success story continues today. For many years, it's been the number one gastrointestinal medicine in Germany, and it's been used by over 52 million sufferers. It has very few side effects and is easily tolerated, making it extremely popular with patients of all ages in over 30 countries across the world7. Research into Iberogast® is continuing too. It's now one of the best-documented plant-based medicines for gastrointestinal disorders in the world, and it's highly recommended by doctors as a fast, effective, well-tolerated solution for people struggling with digestive symptoms3.


Bayer acquires Steigerwald

In 2013, Bayer acquired Steigerwald, the German company that created Iberogast®. Iberogast® become part of Bayer's brand portfolio, benefiting from the global expertise in pharmaceuticals. When it comes to making Iberogast®, Bayer uses the same rigorous manufacturing and quality standards applied to all its medicines. Bayer helps to make this fast, effective, state of the art product available to many more sufferers around the world.