Keimei Gashin-san (powder)
Keimeigashin-san is primarily a gastrointestinal medicine made from herbal ingredients.
Good medicine tastes bitter.Gajutsu is a gastrointestinal medicine characterized by its unique bitterness and refreshing sensation.

Keimei Gashin-san is this kind of medicine.
-
What is it made from?
- The most important ingredient of Keimei Gashin-san is the herbal medicine "Gajutsu (Zingiberis Rhizoma)," which is a member of the ginger family and a close relative of turmeric. Especially those cultivated in Yakushima and Tanegashima are used.
- Additionally, a herbal medicine called "true kelp (Makonbu)" is included.
- In addition to these, turmeric and ginger are included as additives, but all of these are plant-derived ingredients.
-
Why is it famous?
- Keimei Gashin-san is a very historic medicine that has been manufactured and sold since 1933 (Showa 8).
- At the time of development, it is said that a doctor who felt its high effectiveness as "like a god of efficacy" gave it this name.
- In 1942 (Showa 17), it was trusted enough to become a designated medicine of the Navy at that time.
- In recent pharmaceutical re-evaluations, its efficacy and safety have been proven from the perspective of modern medicine and pharmacology, and its evaluation has increased.
- Also, the unique aroma and bitterness derived from Gajutsu are known characteristics. Some people feel that this taste and scent seem effective.
- Some people feel it "definitely works," or when taken before drinking parties, they feel "I don't get as drunk as usual, and it doesn't affect me the next day." Others say that when taken during overeating or Indigestion, "I quickly feel better," and "I feel refreshed and my bowel movements really improve." This long-term use and the fact that many people feel its effects are considered one of the reasons for its fame.
-
What kind of efficacy and effects does it have?
- The main ingredient, Gajutsu, activates stomach function and aids digestion.
- It promotes bile secretion and also has the function of enhancing fat digestion.
- It increases blood flow to the stomach lining and is also expected to have an effect of improving damage to the stomach lining (gastric mucosal repair effect).
- The true kelp included has the function of protecting the mucous membranes of the stomach and digestive tract.
- These actions are effective for various gastrointestinal disorders such as loss of appetite, Indigestion, overeating, overdrinking, heartburn, indigestion, stomach bloating, weak stomach, chest tightness, nausea, and vomiting.
- According to personal experiences, some people feel effects such as relief from hangover queasiness, quick subsiding of heartburn, increased appetite when lacking appetite, and improvement of constipation or diarrhea.
-
Who is it good for?
- It is said to be especially effective for those with weak stomach function and prone to Indigestion.
- Those who have worsened stomach condition due to overeating or overdrinking.
- Those who have symptoms such as loss of appetite, stomach bloating, indigestion.
- Those who feel heartburn or nausea.
- Those who usually want to improve their gastrointestinal condition.
- Those who often drink alcohol.
- According to Keimeido's philosophy, gastrointestinal health is greatly related to overall body health, and it is considered good for those who want to restore natural body functions by improving gastrointestinal condition.
-
Are there any points to be careful about?
- Keimeigashin-san is a pharmaceutical product, so be sure to read the attached instructions carefully and take it correctly according to the dosage and administration.
- Usually taken 4 times a day after meals and before bed, but it is also possible to take 5 to 6 times a day; in that case, keep about 4 hours interval between doses.
- Since the powder type may cause choking, it is better to first hold water in your mouth or mix it with water before taking.
- If you are taking other medicines or have chronic illnesses, please consult a doctor or pharmacist before taking. Especially those with kidney disease undergoing dialysis (due to potassium content), those with thyroid disease (due to iodine content), those who have had allergies to drugs or foods, and those taking warfarin need consultation.
- In very rare cases, allergic symptoms (rash, diarrhea, general fatigue, etc.) may occur. If such symptoms appear, stop taking it and consult a doctor, pharmacist, or registered seller.
- Keimeigashin-san has a strong unique bitterness of Gajutsu, but there is also an easy-to-drink granular type.
Keimeigashin-san is a long-established gastrointestinal medicine centered on Gajutsu, a natural blessing from Yakushima and Tanegashima. Why not try it once when you feel gastrointestinal discomfort?
Indications and Effects
Loss of appetite (decreased appetite), stomach and abdominal bloating, indigestion, weak stomach, overeating (excessive eating), overdrinking (excessive drinking), heartburn, heaviness (Indigestion), chest tightness, nausea (queasiness, stomach queasiness, queasiness from hangover or bad drinking, nausea, vomiting), vomiting
Dosage and Administration
Please take the following amount with water or warm water.
Take 4 times a day after meals and before bedtime. It is acceptable to take 5 to 6 times a day, but in this case, take at intervals of about 4 hours.
| Age | Single dose | |
|---|---|---|
| Keimei Gashin Powder S (Individual packets) |
Keimei Gashin Powder (Economy Size) Attached spoon |
|
| Ages 15 and above |
1 packet |
3g |
| Ages 11 to under 15 |
2 / 3 packet |
2g |
| Ages 7 to under 11 |
1 / 2 packet |
1.5g |
| Ages 3 to under 7 |
1 / 3 packet |
1g |
| Under 3 years old | Do not take | |
Tips for taking




Ingredients and quantity
Per packet (3g)
| Ingredients | Quantity | Function |
|---|---|---|
| 莪蒁 (Gajutsu) powder | 2,500mg | A crude drug made from the rhizome of the ginger family plant Gajutsu. It has a bitter taste and a refreshing sensation. Enhances stomach function and aids digestion. Increases gastric mucosal blood flow and improves gastric mucosal damage. Promotes bile secretion and helps digest fats. |
| True kelp powder | 100mg | A crude drug made from the stems and leaves of kelp (Laminariaceae). Protects the stomach and gastrointestinal mucosa and helps recover weakened stomach and intestines. |
(Powder) Contains turmeric powder, ginger powder, and crystalline cellulose as additives.
(Granules) Contains turmeric powder, ginger powder, and partially alpha-starch as additives.