What is IBS? Irritable bowel syndrome (IBS) can be an uncomfortable condition, but it is nowhere near as serious a health problem as inflammatory bowel disease (IBD).

However, IBS is still far more common, affecting up to 20 percent of the Western world. Symptoms include gas, constipation, diarrhea, cramping and abdominal pain.

Understanding the combination of conditions that trigger this unpredictable health problem can be a mystery due to multiple contributing factors. Among the causes, according to the National Digestive Diseases Information Clearing House (NDDIC):

• Stress and anxiety
• Food sensitivities
• Hypersensitivity to pain
• Motor problems that cause irregular movement in the bowels
• Altered levels of gastrointestinal hormones and body chemicals that transmit nerve signals

The genetic effect

Near the bottom of the list of causes, the NDDIC cites genetics as a common source among family members with a shared history of IBS problems, but is noncommittal about its overall effect. A recent Mayo Clinic study may shed some new light on the genetics of IBS.

Researchers have identified a genetic defect, a mutation of the SCN5A gene that affects the absorption of water and electrolytes. Disruption of this sodium ion channel can lead to constipation or diarrhea.

After comparing the tissues of 584 IBS patients to nearly 1,400 healthy patients, scientists discovered the genetic defect in 2.2 percent of IBS patients.

Is a drug always the best, safest treatment?

Mayo Clinic researchers treated patients with genetic-based IBS successfully by using mexiletine, a drug that improved the sodium ion transport and eased the symptoms of abdominal pain, diarrhea and constipation for this small group of patients.

Mexiletine is part of the antiarrhythmic class of drugs that works by blocking some electrical signals in the heart to stabilize heart rhythms. (It has also been prescribed to treat nerve damage caused by diabetes.)

Unfortunately, medications may come with adverse effects. Antiarrhythmic drugs like mexiletine have been linked to reports of increased risk of heart attack and death, according to MedlinePlus. Those risks are especially elevated among patients who have suffered a heart attack over the past two years.

Taking mexiletine may also increase the chance of experiencing an irregular heartbeat and hasn’t helped people who don’t experience life-threatening arrhythmias to live longer. MedlinePlus warns against using mexiletine unless a patient has suffered life-harming arrhythmias.

Probiotics: The safer, better treatment option

The real problem with taking prescription medications like mexiletine: Too many of them only treat superficial symptoms but neglect to correct the real health problem. However, there is a safer IBS Treatment option that treats the “whole” patient holistically.

Taking a probiotic made from multiple strains of beneficial bacteria like EndoMune Advanced Probiotic every day not only alleviates symptoms for many IBS sufferers, but corrects the underlying disorder and does it without the risk of any adverse side effects.