Gastac Liquid (Simethicone)
Simethicone 2g
Suspension · OTC medication
Hyun's Co., Ltd.
MFDS item code 201405117 · Notified 2014.10.31
This product's status changed to Expired on 2024.10.31. It may no longer be sold, so consult a doctor or pharmacist before taking it.
Relief of intestinal gas and bloating, improvement of abdominal symptoms
This medication helps to remove bubbles that have formed in the intestine during gastric endoscopy. It also helps to eliminate intestinal gas for clearer X-ray results of the abdomen. It is used to alleviate symptoms such as abdominal distention and aerophagia caused by intestinal gas.
1. For gastric endoscopy, administer 40-80mg orally with about 10mL of water 15-40 minutes before the examination. 2. For abdominal X-ray examination, start from 3-4 days prior, taking 40-80mg three times a day after meals or between meals. 3. For improvement of abdominal symptoms due to intestinal gas, take 40-80mg three times a day after meals or at bedtime. Adjust accordingly based on age and symptoms.
This medication contains aspartame, an artificial sweetener. Aspartame is broken down in the body into phenylalanine, so it should not be used by patients with phenylketonuria, a hereditary condition that requires restriction of phenylalanine intake. In addition, since a maximum daily intake of aspartame is established, precautions should be taken to not exceed the recommended dose while using this medication. The maximum daily dosage for adults is about 2.4g. This medication contains sodium metabisulfite, which may cause allergic reactions. Caution is advised, especially for asthma patients or individuals sensitive to sulfites, as there is a risk of severe allergic reactions or asthma attacks. During treatment, gastrointestinal side effects such as occasional loose stools, abdominal discomfort, diarrhea, abdominal pain, vomiting, nausea, abdominal heaviness, and decreased appetite may occur. Rarely, headaches may also occur. This medication also contains sodium benzoate, which can cause mild irritation to the skin, eyes, and mucous membranes, so caution is advised. Shake the bottle well before use to mix the contents evenly, and keep it out of reach of children. Additionally, to maintain the medication's effectiveness, it should be stored in a tightly sealed container away from direct sunlight and in a cool, dry place.
Not everyone experiences these, and they can vary from person to person.
This medication is sensitive to light and should be stored in a special container that protects it from light. Additionally, it is essential to maintain a temperature between 1°C and 30°C when storing the medication to preserve its effectiveness.
A milky suspension in an aluminum pouch
10mL X 20 packets
Even with the same ingredient, strength, dosage form and how it is taken can differ.
Simethicone 2g
Suspension · OTC medication
Hyun's Co., Ltd.
Simethicone 2g
Suspension · OTC medication
(Co., Ltd.) Taejoon Pharm.
Simethicone 2g
Suspension · OTC medication
Haipul Life Sciences Co., Ltd.
Simethicone 2g
Suspension · OTC medication
Korea Pharma Co., Ltd.
Simethicone 2g
Suspension · OTC medication
Korean Pharma Bio Co., Ltd.
Simethicone 2g
Suspension · OTC medication
Genewon Science Co., Ltd.
Simethicone 2g
Suspension · OTC medication
McNulty Pharmaceuticals Co., Ltd.

Simethicone 80mg
Chewable Tablet · OTC medication
Hanmi Pharmaceutical Co., Ltd.
Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.
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For anything that needs medical judgment, consult a doctor or pharmacist.
This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.