OHTA'S ISAN A (太田胃散A) ANTACID DIGESTIVE -300-TABLET
Experience fast, soothing relief from indigestion, bloating, heartburn, and that heavy, overstuffed feeling after greasy meals with Ohta's Isan A—Japan’s trusted multi-action digestive aid. Engineered for effectiveness, this formula combines powerful enzymes, antacids, and herbal extracts to get your digestion back on track—FAST.
-
Why It Works: A dynamic blend of four digestive enzymes helps break down fats, proteins, and starches:
-
Lipase AP6 (60 mg) – tackles fats
-
Prozyme 6 (30 mg) – digests proteins
-
Biodiastase 1000 (60 mg) – handles starches & proteins
-
Ursodeoxycholic Acid (12.6 mg) – aids bile production for fat digestion
-
-
Balanced Antacid Action: A triple-antacid blend (bicarbonate, hydrotalcite, calcium carbonate) helps neutralize excess stomach acid for quick relief.
-
Natural Soothing Support: Herbal digestive aids like cinnamon, lemon oil, and fennel oil promote gentle, comforting relief for a tired stomach.
-
Easy-to-Take Formula: Small, fast-dissolving tablets—you can even chew them if needed for quick relief.
Relief For
-
Greasy or heavy meals
-
Overeating
-
Heartburn, bloating, indigestion
-
Nausea, acidity, upset stomach
-
Seasonal digestive sluggishness or weak appetite
Recommended Use
| Age Group | Dosage | Times per Day |
|---|---|---|
| Adults (15+) | 3 tablets | Up to 3 times |
| Ages 8–14 | 2 tablets | Up to 3 times |
| Ages 5–7 | 1 tablet | Up to 3 times |
| Under 5 years | Not recommended | — |
| Tip: Take post-meal or between meals. Before bed or on an empty stomach may help appetite. Chewing is acceptable. | ||
Important Safety Info
-
Do not use if undergoing dialysis or for long-term continuous use.
-
Consult a doctor/pharmacist if pregnant, treating conditions like kidney or thyroid disease, or taking other medications.
-
Stop use immediately and consult a physician if allergic reactions or persistent symptoms arise after 2 weeks.
-
Store in a cool, dry place away from sunlight. Keep out of children’s reach and do not transfer to other containers.




Description
Experience fast, soothing relief from indigestion, bloating, heartburn, and that heavy, overstuffed feeling after greasy meals with Ohta's Isan A—Japan’s trusted multi-action digestive aid. Engineered for effectiveness, this formula combines powerful enzymes, antacids, and herbal extracts to get your digestion back on track—FAST.
-
Why It Works: A dynamic blend of four digestive enzymes helps break down fats, proteins, and starches:
-
Lipase AP6 (60 mg) – tackles fats
-
Prozyme 6 (30 mg) – digests proteins
-
Biodiastase 1000 (60 mg) – handles starches & proteins
-
Ursodeoxycholic Acid (12.6 mg) – aids bile production for fat digestion
-
-
Balanced Antacid Action: A triple-antacid blend (bicarbonate, hydrotalcite, calcium carbonate) helps neutralize excess stomach acid for quick relief.
-
Natural Soothing Support: Herbal digestive aids like cinnamon, lemon oil, and fennel oil promote gentle, comforting relief for a tired stomach.
-
Easy-to-Take Formula: Small, fast-dissolving tablets—you can even chew them if needed for quick relief.
Relief For
-
Greasy or heavy meals
-
Overeating
-
Heartburn, bloating, indigestion
-
Nausea, acidity, upset stomach
-
Seasonal digestive sluggishness or weak appetite
Recommended Use
| Age Group | Dosage | Times per Day |
|---|---|---|
| Adults (15+) | 3 tablets | Up to 3 times |
| Ages 8–14 | 2 tablets | Up to 3 times |
| Ages 5–7 | 1 tablet | Up to 3 times |
| Under 5 years | Not recommended | — |
| Tip: Take post-meal or between meals. Before bed or on an empty stomach may help appetite. Chewing is acceptable. | ||
Important Safety Info
-
Do not use if undergoing dialysis or for long-term continuous use.
-
Consult a doctor/pharmacist if pregnant, treating conditions like kidney or thyroid disease, or taking other medications.
-
Stop use immediately and consult a physician if allergic reactions or persistent symptoms arise after 2 weeks.
-
Store in a cool, dry place away from sunlight. Keep out of children’s reach and do not transfer to other containers.
