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Iberogast Supplement Facts, Research and Side Effects You Need to Know

Tim Boyer's picture

Iberogast is a dietary supplement used to treat functional dyspepsia in the forms of indigestion, stomach pain, bloating and gas. Its use as an anti-anxiety supplement to soothe a stomach made upset by emotional stress was recently promoted on a popular health TV show. While Iberogast has been used for a number of years without reports of any major warnings, there are a few facts, research findings and side effects you need to know about before trying this naturopathic supplement.

What is Iberogast?

Iberogast is a plant-derived extract supplement used to treat several gastric disorders and irritable bowel syndrome. It is made from a concoction of 9 ingredients: Iberis amara, Angelica, Chamomile, Caraway Fruit, St. Mary’s Thistle, Lemon Balm Leaves, Peppermint Leaves, Celandin, Liquorice Root and alcohol.

The majority of the herbal extracts used in the supplement focus on relieving painful stomach cramps and preventing flatulence. The proposed benefits of each component are as follows:

• Iberis amara—increases the tone of the smooth muscles of the GI tract resulting in increased peristaltic movement to move digested food along its way.

• Angelica Chamomile—an anti-inflammatory agent that promotes digestion, gastric juice production and provides relief from stomach muscle cramping.

• Caraway fruit—relieves cramps and acts as a microbiocide to counter flatulence from consumption of gas-producing foods such as beans and cabbage.

• St. Mary’s Thistle—promotes good liver health.

• Lemon Balm leaves—calming, sedative-like effect and anti-flatulent.

• Peppermint leaves—relieves cramps, stimulates bile production and is anti-flatulent.

• Celandin—relieves cramps in GI tract.

• Licorice root—relieves cramps and promotes healing of stomach ulcers.

• Alcohol—preserves the herbal components.

Recommended Dosages of Iberogast

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Iberogast is typically diluted in water for consumption. Typical manufacturer dosage recommendations for Iberogast for adults is 20 drops of Iberogast, three times a day with their beverage. While there are children and infant recommended dosages, the manufacturer recommends that you consult your physician before giving Iberogast to non-adults.

Iberogast Research

In one study published in the American Journal of Gastroenterology, researchers investigated the effect Iberogast has on aiding digestion in healthy male subjects.

Digestion is a complex process that relies on the contractile activity of the stomach to mix, grind and eventually evacuate small portions of chyme into the small bowel where it is further processed and eventually evacuated from the body.

Many types of gastric disorders are the result of how well food is initially processed in the stomach and therefore was the focus of the effect that Iberogast has on gastric volume, gastric emptying and the motor function of the antrum—the lower region of the stomach just before food passes through the pyloric valve to the duodenum.

What the researchers determined was that Iberogast does appear to beneficially aid gastric motility in specific regions of the human stomach via stimulation of gastric relaxation and antral motility. They concluded that their results indicate that Iberogast likely contributes to the reported therapeutic benefits of treating functional dyspepsia (upset stomach) conditions.

Iberogast Side Effect Warnings

While there are no obvious reported side effects of Iberogast as a whole, some people do have a susceptibility to some of the components of the supplement:

• Chamomile side effects—chamomile is a member of the ragweed family of plants and as such does elicit an allergic reaction in some people with symptoms ranging from minor itching of the skin and throat swelling, to full blown anaphylaxis. If you have ragweed or related allergies, Iberogast is contraindicated for use.

• Licorice Root side effects—licorice root in both large and small doses have been reported to cause fatigue, headaches, high blood pressure and even cardiac arrest in some individuals. In addition, Licorice root contains the chemical glycyrrhizin, which can cause a condition called pseudo-aldosteronism in which you become overly sensitive to hormones from your adrenal cortex.

• Alcohol side effects—some preparations of Iberogast contain up to 30 percent alcohol content and therefore should be avoided in giving to children or to adults who are recovering from alcohol abuse or at risk of alcoholism.

The take home message is that aside from meeting the conditions listed in the aforementioned “Iberogast side effect warnings,” years of Iberogast use by the public and some research studies have demonstrated that Iberogast is relatively safe and likely beneficial. However, as with any supplement, you should first consult with your physician before taking any non-prescribed herbal remedy.

Image Source: Courtesy of Wikipedia


“Effects of Iberogast® on Proximal Gastric Volume, Antropyloroduodenal Motility and Gastric Emptying in Healthy Men” The American Journal of Gastroenterology (2007) 102, 1276–1283; doi:10.1111/j.1572-0241.2007.01142.x; Amelia N Pilichiewicz BSc (Hons), Michael Horowitz MBBS, PhD, FRACP, Antonietta Russo BSc, MMSc, Anne F Maddox Asst Dip Rad Tech, Karen L Jones Dip Appl Sci, PhD, Michael Schemann PhD, Gerald Holtmann MD, PhD, FRACP, FRCP and Christine Feinle-Bisset MMedSci, PhD.



happy to be on your mailing list - find iberogast of extreme help
Anything with booze will not hekp digestion. The company is crazy.
I had gall bladder surgery but the pain I had was still there. I then was diagnosed of having SOD (sphinctor of oddi dysfunction). After two conservative approaches to manage my pain, I finally had an ERCP procedure to investigate what the problem was. There was scar tissue blocking the pancreas that was corrected but I STILL had pain. I told my doctor that my liver hurt but she said it was my pancreas. I was taking betaine hcl for digestion since my stomach was not producing enough gastric juices for digestion. I was also taking azeo pangen, enzymes, to help the pancreas in food digestion. I still had pain and horrible belching. So my doctor prescribed the Iberogast. I CAN'T BELIEVE IT! I no longer use the betaine hcl or azeo pangen. My pain has subsided. I have dealt with this pain for four years. Nothing helped. I thought that I would have to manage my discomfort of belching and pain in my upper quadrant forever. The Iberogast is wonderful. I haven't told my doctor how this has worked for fear that it may be temporary. So far I have been pain free for four weeks. Yeah!
Hi drank a dose of iberogast for gas. That was four days ago. I have had diarrhea since. Only when I retraced what I drank or ate did I remember that it has been ever since drinking the iberogast. I have just checked the expiry date and it expired January 2013. Could this be the cause a my 4 days of diarrhea and should I be worried.
This made me have extreme pain, sweating and pass out. I reduced the dose by 1/2 and still have the same pain and cramps. I had my gallbladder out in 1993. Same pain. ERCP in 2008 same pain. IBS and gastopheresis. It is debilitating. Wish I found something to help.
My GI doc recommended that I try Iberogast because I have been battling severe bloating with everything from water to fruit to vegetables to meats. I had previously tried elimination tactics (no soy, no dairy, etc) and found no relief. I had many tests done for bacteria, cancer, and a host of other GI-related tests/procedures. I tried other herbal remedies, the FODMAP nutritional plan, several probiotics. Still, no relief. Even a glass of water would cause bloating to the point that my kids thought I was pregnant (I'm rather slim)! After only four days on Ibergast, I feel the first sense I relief I have had in almost 5 months. I thought it would be another fail but I've been using it 3xday for about 3 weeks and I have had no side effects of any kind.
I have gastroparesis. I use ibergast in bigelow ginger tea with probiotics when i have a meal. I find it helps a lot.
investigating before trying
Works like mágic for severe indigestión. Wonderfull product.
Does anyone recommend trying this in place of Nexium for GERD?
Ibergasts effect or benefit for GERD?
I have had GERD for about 10 years now and have so far not found anything that gives me any relief from bloating, wind, pain, etc. I have sent for IBEROGAST and hope it will help. I will keep you posted.
After my operation i had a problem of constipation. beacause the doctor prescribe cronic medication for me my colleague advice me to use iberogast i have drink for 2weeks and my system is working normally i feel i am a person after iberogast it does wonders.
How does this product go with IBD ulcerative colitis
My daughter started taking this her urine turned green and she had severe diarhhoea so we not sure what now we stopped the Iberogast but the diarhheoa doesn't disappear.
THANK-YOU!!!! I have suffered from severe IBS for a long time and would often end up needing antibiotics then someone introduced me to this bottle of miracle magic called IBEROGAST and i can now eat anything i like in moderation. If i ever feel even a tinge of a bloat i go straight to IBEROGAST and it nips it in the bud. Sometimes i have iberogast once a day, sometimes i don't have it at all and sometimes i have it twice a day. I just listen to my body and i am so grateful that i can take to get rid of any pain and discomfort related to IBS and for other health benefits I'm sure. THANK-YOU THANK-YOU THANK-YOU xx
I'm having terrible heartburn can Iberogast help I'm also taking ARV. Hope it won't interact
I have used Iberogast for a short time for my crampy stomach and well this mixture sure does help.I have recommended it to all my family and frends now they are all raving about it.i use it wen ever I need it, it is very good.Thank you very much to who ever came up with this remedy.