Ota-Iisan [Individual Packets] 48 packets antacid Indications: Excessive drinking, heartburn, stomach discomfort, weak stomach, indigestion, overeating, stomach

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Indications: Excessive drinking, heartburn, stomach discomfort, weak stomach, indigestion, overeating, stomach pain, poor digestion, promoting digestion, loss of appetite, excessive stomach acid, stomach/abdominal bloating, nausea (stomach upset, nausea from hangovers or alcohol intoxication, queasiness), vomiting, feeling of fullness in the chest, belching, heavy feeling in the stomach


Ota-Iisan [Individual Packets] 48 packets antacid Indications: Excessive drinking, heartburn, stomach discomfort, weak stomach, indigestion, overeating, stomach pain, poor digestion, promoting digestion, loss of appetite, excessive stomach acid, stomach/abdominal bloating, nausea (stomach upset, nausea from hangovers or alcohol intoxication, queasiness), vomiting, feeling of fullness in the chest, belching, heavy feeling in the stomach



Product Details
Ota-I-San [Individual Packets] is a gastrointestinal medicine tailored to modern dietary habits, combining stomach-strengthening herbal ingredients (natural substances) with antacids and digestive enzymes. It provides gentle yet effective relief for unpleasant symptoms such as overindulgence, heartburn, and stomach heaviness. Use Ota-I-San [Individual Packets] to help you enjoy comfortable daily meals.Herbal Ingredients Improve Stomach Function The effective blend of seven stomach-strengthening herbal ingredients improves stomach function, helping alleviate unpleasant symptoms like overindulgence, overeating, and stomach heaviness. These herbal ingredients are also effective for those with weak stomachs or poor appetite.Antacids neutralize stomach acid. By combining antacids with different neutralizing actions, it adjusts stomach acidity, providing excellent relief for heartburn, stomach pain, and gastric discomfort, while also facilitating the action of digestive enzymes. Refreshing taste and reliable effectiveness. It is formulated as a powder to preserve the aromatic flavor and efficacy characteristic of herbal medicines.The aromatic flavor of the herbal ingredients, combined with the cooling sensation of L-menthol and the action of the antacid, provides a refreshing and pleasant experience when taken. Furthermore, being a powder, it acts quickly in the stomach. For those who find taking powdered medicine difficult: First, place the medicine in your mouth, then take a sip of water. Mix it well with your tongue 2-3 times before swallowing to make it easier to take.
View the Medicinal Product Information Leaflet as a PDF


Take the following amount after meals or between meals.- Adults (15 years and older) ... 1 packet per dose, 3 times daily - 8 to 14 years old ... 1/2 packet per dose, 3 times daily - Under 8 years old ... Do not administer - -Between meals- refers to 2 to 3 hours after eating. [Precautions Regarding Dosage and Administration] When administering to children, ensure they take it under the guidance and supervision of a parent or guardian.

Per packet (1.3g) - Stomach-strengthening herbs Cinnamon bark...92mg (The stomach-strengthening effects of each herbal component promote healthy stomach function. The unique aroma and bitterness inherent to these herbs also stimulate gastric motility and regulate gastric juice secretion.) Fennel...24mg (The stomach-strengthening effects of each herbal component promote healthy stomach function.The unique aroma and bitterness of the herbs also invigorate stomach movement and regulate gastric juice secretion.) Cinnamon Bark... 20mg (Each herbal component's stomach-strengthening action promotes healthy stomach function.Furthermore, the unique aroma and bitterness of the herbal ingredients stimulate gastric motility and regulate gastric juice secretion.) Clove...12mg (The stomach-strengthening effects of each herbal ingredient improve gastric function.Furthermore, the unique aroma and bitterness of the herbal ingredients stimulate gastric motility and regulate gastric juice secretion.) Chinpi...22mg (The stomach-strengthening effects of each herbal ingredient improve gastric function.Furthermore, the unique aroma and bitterness of the herbal ingredients stimulate gastric motility and regulate gastric juice secretion.) Gentiana...15mg (The stomach-strengthening effects of each herbal ingredient improve gastric function.Furthermore, the unique aroma and bitterness of the herbal ingredients stimulate gastric motility and regulate gastric juice secretion.) Nigaki Powder...15mg (The stomach-strengthening effects of each herbal ingredient promote healthy gastric function. Furthermore, the unique aroma and bitterness of the herbal ingredients stimulate gastric motility and regulate gastric juice secretion.)-Antacids Sodium bicarbonate...625mg (Antacids with varying effects-rapid-acting, sustained-release, and slow-release-effectively adjust acidity in the stomach.) Precipitated calcium carbonate...133mg (Antacids with varying effects-rapid-acting, sustained-release, and slow-release-effectively adjust acidity in the stomach.) Magnesium carbonate...



1. Do not take this medicine if you are undergoing dialysis therapy. 2. Do not use continuously for long periods.

If you have any issues with the products and need some assistance, please contact us through our mail or contact form within 14 days of purchase and we will make sure you are taken care of properly.A Return Merchandise Authorization (RMA) number is required for all returns.In the event that we or our carriers are responsible (Damaged during shipping, defective,...etc.), we will either ask you to return the product or send out a replacement.