Recommended Over-the-Counter Drugs for Stomach ache

Have you ever had a sudden stomach ache and had trouble with it?

The causes of stomache ache are very diverse.

Different conditions can cause abdominal pain, such as enteritis, stomach ulcers, gastritis, and menstrual cramps.

The nature of abdominal pain can also vary in its manifestation, from a stabbing pain to a throbbing, pulsating pain to a tightening pain.

This article summarizes recommended over-the-counter medications for abdominal pain that can be treated with over-the-counter medications.


What are common types of abdominal pain?

Abdominal pain can be divided into various types depending on its cause and how it is felt.

Stomache ache due to diarrhea or constipation is a common type of abdominal pain.

Understanding these symptoms can help you choose effective remedies and over-the-counter medications.

Diarrhea Type

Diarrhea-type abdominal pain is caused by excessive intestinal activity.

This can be caused by illnesses such as enteritis or gastritis, allergic reactions to food, or stress.

It is often accompanied by abdominal pain and the need to frequently run to the bathroom, which can be a major disruption to daily life.

For this type of abdominal pain, over-the-counter medications that work to reduce intestinal inflammation and medications that regulate bowel movements are recommended.

Constipation Type

Constipation-type abdominal pain is caused by retained stools in the intestines.

When constipation persists for a long period of time, gas builds up in the intestines and the abdomen may become tense and painful.

If constipation causes abdominal pain, it is also important to eat a diet rich in fiber and drink adequate fluids.

Over-the-counter medications that relieve constipation and regulate the intestinal environment are considered effective.

How to Select and Take Medications

When using over-the-counter medications for abdominal pain, it is important to understand how to select and take the appropriate product.

Because the causes of abdominal pain can vary widely, the first step is to identify the type of abdominal pain.

For example, if the cause is gastritis or a stomach ulcer, a gastrointestinal medication such as Gaster 10 S Tablets can help.

If the cause is constipation, a laxative such as Metasulu is appropriate.

If abdominal pain is accompanied by diarrhea, medications such as Stoppael Antidiarrheal EX may be helpful.

When choosing a medicine, pay attention to the ingredients of the medicine and choose the one best suited for your symptoms.

Also, because the risk of side effects exists even with over-the-counter medications, it is important to always read the product instructions and then take the medication in the specified dosage.

It is also recommended that you seek medical attention before using over-the-counter medications if abdominal pain persists for days or if the cause is unclear.

In addition to taking medications, lifestyle changes such as eating a well-balanced diet in daily life, taking moderate exercise, and managing stress appropriately will also help prevent and improve abdominal pain.

7 Effective Over-the-Counter Medicines for Abdominal Pain

Abdominal pain can be caused by many reasons, but fortunately there are over-the-counter medications that are effective in relieving various types of abdominal pain.

In this article, we recommend seven over-the-counter medications for different causes of abdominal pain.

Gaster 10 S Tablets 12 tablets

Can be taken from ages 15 and up. *Not for seniors over 80 years old.

One tablet per time, up to twice a day.

Suppresses stomach acid secretionFamotidine10mg
ガスター10 S錠

Gaster 10 S Tablets is a recommended over-the-counter medicine that is effective for abdominal pain caused by gastritis or stomach ulcers.

It relieves stomach pain and lethargy by suppressing excessive secretion of stomach acid.

It is a particularly effective option for those suffering from stomach problems.

Buscopan A Tablets 20tablets

Can be taken from ages 15 and up.

One tablet per time, up to three times a day.

Relieve abnormal gastrointestinal tensionButylscopolamine bromide10mg

Buscopan A Tablets are effective for abdominal pain caused by intestinal spasms.

It is often used to relieve intestinal spasms and pain in situations where the intestines are hypersensitive and cause pain.

Buscopan A Tablets are recommended if you suffer from menstrual cramps or digestive spasms.


Do not use if you have benign prostatic hyperplasia or angle-closure glaucoma.

Magnesium oxide E Laxative 90 tablets

It can be taken from ages 5 and up.

15 years and older: 3 to 6 tablets once a day 11 to 15 years: 2 to 4 tablets once a day 7 to 11 years: 2 to 3 tablets once a day 5 to 7 years: 1 to 2 tablets once a day.

Improvement in constipationMagnesium oxide (MgO)10mg

Magnesium oxide e laxative is effective in relieving abdominal pain caused by constipation.

It can relieve abdominal pain caused by constipation by stimulating bowel movement and improving constipation.

If you suffer from constipation, it is worth trying magnesium oxide E laxative.

  • May be incompatible with antibiotics and iron preparations.
  • Diarrhea may occur.
  • People with impaired kidney function may refrain from taking it.

Stoppael Diarrhea Relief EX 12 tablets

It can be taken from ages 15 and up.

One tablet per time, up to three times a day.

Suppresses abnormal bowel movementsScopolia Extract20mg
Reduce inflammation and sterilize intestinal mucosaBerberine tannate100mg

Stoppael Diarrhea Relief EX is recommended for abdominal pain caused by diarrhea.

It suppresses abnormal fluid secretion in the intestines that causes diarrhea and relieves abdominal pain and diarrhea.

When suffering from sudden diarrhea, Stoppael Anti-diarrhea EX can be a quick solution.

  • Do not use if you have benign prostatic hyperplasia or angle-closure glaucoma.
  • In cases of bacterial diarrhea, use may prolong symptoms.

Daiichi Sankyo Gastrointestinal Fine Granules 32 packs

Can be used from 3 years old and up.

3 to 5 years old: 1/4 package, 5 to 8 years old: 1/4 package, 8 to 11 years old: 1/3 package, 11 to 15 years old: 1/2 package, 15 years old and older: 1 package 3 times a day

Digestive enzymeTaka-Diastase N1, Lipase AP12
Protects gastric mucosa and soothes inflammationMallotus bark extrac, Powdered glycyrrhiza
Anti-acid effectMagnesium Aluminosilicate, Synthetic hydrotalcite, Magnesium hydroxide
Chinese herbs that aid digestionPowdered phellodendron bark, Powdered cinnamon bark, Powdered fennel, Powdered clove, Powdered ginger, l-Menthol

Daiichi Sankyo Gastrointestinal Fine Granules is effective for abdominal pain caused by lethargy or mild gastritis.

It suppresses excessive secretion of stomach acid, reduces stomach discomfort, and contains ingredients that aid digestion.

It is the best choice for dealing with postprandial lethargy and pain caused by mild gastritis.


People on dialysis cannot take this drug.

Cerekinone S 20 tablets

Available for ages 15 and older.

Take 1 tablet 3 times a day.

Relieves symptoms of irritable bowel syndrome Trimebutine maleate300mg

Irritable bowel syndrome is a recurrent or alternating manifestation of diarrhea and constipation with abdominal pain or discomfort.

Selekinon S is a medication that improves the symptoms of Irritable Bowel Syndrome (IBS) with the active ingredient, trimebutine maleate.

Trimebutine maleate has the ability to normalize bowel movements.

Therefore, it is effective for any form of irritable bowel syndrome, including diarrheal, constipation, and mixed types.

Only for people who have been previously diagnosed and treated by a physician for irritable bowel syndrome.

A self-check sheet and confirmation by a pharmacist or registered distributor are required at the time of purchase.

Biosuly Hi 42 tablets

Can be taken from 5 years of age and older.

Ages 5 to 15: 1 tablet per dose, Ages 15 and older: 2 tablets per dose, 3 times a day

Regulate bowel movementsLactomin (lactobacillus), butyric acid bacteria, saccharomycetes30mg、150mg、150mg

Biosly Hi delivers three kinds of active bacteria: saccharomycetes, which increase lactobacilli and bifidobacteria; butyric acid bacteria, which are necessary for maintaining intestinal functions; and lactobacilli, which help the growth of butyric acid bacteria, alive.

It improves the intestinal flora and colon barrier and regulates daily bowel movements.

Recommended for people who are prone to constipation, have a loose stomach, want to improve stomach upset, and want to improve the intestinal flora and colon barrier to regulate their bowels.


Abdominal pain is one of the most troublesome symptoms that can greatly reduce quality of life due to its very wide variety of causes.

There are numerous causes, including symptoms originating from the gastrointestinal tract and gynecological organs.

This article focuses on the common causes of abdominal pain, its types, and recommended and effective over-the-counter medications for abdominal pain.

However, if the cause is not obvious or the symptoms are worsening, it is important to seek medical attention rather than relying on over-the-counter medications.

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