Gaster 10 S Tablet [Class 1 Drug] 9 Tablets Daiichi Sankyo Healthcare [Class 1 Drug]

Heartburn, stomach pain, nausea, feeling heavy
(This drug contains H2 blocker drug)
[Precautions related to efficacy/effects]
Do not take this drug for any symptoms other than those listed in the indications.

This drug is a white tablet, and each tablet contains the following ingredients.
Famotidine…10mg (Controls excess stomach acid.)
Additives: Ethylcellulose, cetanol, sodium lauryl sulfate, triacetin, cyclodextrin, fragrance, l-menthol, D-mannitol, aspartame (L-phenylalanine compound), candy powder, calcium stearate

If you experience symptoms of heartburn, stomach pain, nausea, or heavy weight, please dissolve the following amount in your mouth or take it with water or hot water.
[Age: Dose: Number of doses per day]
Adults (over 15 years old, under 80 years old): 1 tablet: up to 2 times
Children (under 15 years old): Do not take.
Elderly (over 80 years old): Do not take.
・If your symptoms do not subside after 8 hours or more after taking this medicine, please take another packet.
・If your symptoms have subsided, please stop taking this medicine.
・If your symptoms do not improve after taking this medicine for 3 days, stop taking it and consult your doctor or pharmacist.
・Do not take this medicine continuously for more than 2 weeks.
[Precautions related to usage and administration]
(1) Please strictly follow the directions and dosage.
(2) Although this drug disintegrates easily in the oral cavity, it is not absorbed through the mucous membranes of the oral cavity, so after dissolving it in the mouth, swallow it with saliva or with water or hot water. Just like regular tablets, the effect remains the same even if you take it as is with water or hot water.
(3) When taking this drug, please refrain from consuming alcoholic beverages.
(Medications are generally not taken together with alcoholic beverages.)
[How to take out the tablet]
Press the convex part of the PTP sheet containing the tablet firmly with your fingertips to break the aluminum foil on the back, take it out, and take it.
(If you accidentally swallow it whole, it may pierce the esophageal mucosa or cause an unexpected accident.)
This medicine is not a medicine to be taken at set times, but rather a medicine to be taken when symptoms appear.
It is not affected by meals, so you can take it before, after, or between meals.
One tablet at a time will control excess stomach acid for about 8 hours, so if you take it twice a day, please wait at least 8 hours apart.

・If your symptoms do not improve after taking this medicine for 3 days, please stop taking it and consult your doctor or pharmacist with this document.
・Do not take this medicine continuously for more than 2 weeks.
(Please consult a doctor as there is a risk of overlooking a serious gastrointestinal disease.)
What not to do
(If you do not follow these guidelines, your current symptoms may worsen or side effects may occur more easily.)
1. Please do not take this medicine for the following people:
(1) People who have experienced allergic symptoms (e.g. rash/redness, itching, swelling of the throat, eyelids, lips, etc.) due to H2 blocker drugs such as famotidine
(2) Persons receiving treatment or medicine for the following illnesses at a medical institution:
Blood diseases, kidney and liver diseases, heart diseases, stomach and duodenal diseases, immune system diseases such as asthma and rheumatism, steroids, antibiotics, anticancer drugs, azole antifungals
(May cause decreased white blood cells, decreased platelets, etc.)
(If you have kidney or liver disease, the excretion of the drug may be delayed and its effects may be stronger.)
(If you have a heart disease such as myocardial infarction, valvular heart disease, or cardiomyopathy, you may experience a sluggish pulse accompanied by electrocardiogram abnormalities.)
(People receiving treatment for gastric or duodenal diseases are likely to have been prescribed famotidine or similar drugs, so they need to be careful not to take them multiple times.)
(The absorption of azole antifungal agents decreases, reducing their effectiveness.)
(3) Persons whose doctor has pointed out blood abnormalities such as a low number of red blood cells (anemia), a low number of platelets (difficult to stop blood, easy bleeding), and a low number of white blood cells.
(This drug may become a trigger and cause blood abnormalities again.)
(4) People with phenylketonuria (this drug contains L-phenylalanine compound)
(5) Children (under 15 years old) and elderly (over 80 years old)
(6) Pregnant women or those who appear to be pregnant.
2. Do not take the following medicines while taking this drug.
Other gastrointestinal drugs
3. If you are breastfeeding, please do not take this drug or avoid breastfeeding if you are taking this drug.

1. The following people should consult their doctor or pharmacist before taking this medicine.
(1) Persons receiving treatment from a doctor or taking other medicines
(2) People who have had allergic symptoms due to drugs, etc.
(3) Elderly people (65 years or older)
(In general, elderly people may have decreased physiological functions.)
(4) People with the following symptoms
Sore throat, cough, and high fever (people with these symptoms are suspected of having a serious infection, and blood abnormalities such as decreased blood cell counts may be observed. If you have these symptoms before taking this drug, your symptoms may worsen by taking this drug, and you may be delayed in noticing the side effects of this drug), unexplained weight loss, persistent abdominal pain (this may be caused by another disease)
2. If the following symptoms appear after taking this medicine, it may be a side effect, so please stop taking it immediately and consult your doctor or pharmacist with this document.
[Related area: Symptoms]
Skin: Rash/redness, itching, swelling
Circulatory system: Blood flow
Psychiatric and nervous system: feeling of weakness, convulsions
Other: If you feel unwell, feel sluggish, have a fever, or have a sore throat, you may experience physical abnormalities.
In rare cases, the following serious symptoms may occur. In that case, please see a doctor immediately.
[Symptom name: Symptom]
Shock (anaphylaxis): Immediately after taking the drug, symptoms such as itchy skin, hives, hoarseness, sneezing, itchy throat, difficulty breathing, palpitations, and clouded consciousness may occur.
Oculomucocutaneous syndrome (Stevens-Johnson syndrome): High fever, bloodshot eyes, mucus, sore lips, sore throat, and widespread skin rash/redness that persist or worsen rapidly.
Toxic epidermal necrolysis: High fever, bloodshot eyes, mucus, sore lips, sore throat, and widespread rash/redness on the skin persist or worsen rapidly.
Rhabdomyolysis: Muscle pain in the limbs, shoulders, lower back, etc., numbness in the limbs, weakness, stiffness, general malaise, reddish-brown urine, etc.
Liver dysfunction: Fever, itching, rash, jaundice (yellowing of the skin and whites of the eyes), brown urine, general malaise, loss of appetite, etc. may appear.
Kidney disorder: Fever, rash, decreased urine output, general swelling, general malaise, joint pain (pain in the joints), diarrhea, etc. may appear.
Interstitial pneumonia: When you climb stairs or push yourself too hard, you may experience shortness of breath, difficulty breathing, dry cough, fever, etc., which may appear suddenly or persist.
Blood disorders: Sore throat, fever, general malaise, whitish appearance on the face and behind the eyelids, easy bleeding (bleeding gums, nosebleeds, etc.), bruising (color that does not disappear even when pressed), etc. may appear.
3. If you accidentally take more than the prescribed dose, stop taking it immediately and consult your doctor or pharmacist with this document.
4. The following symptoms may appear after taking this medicine. If these symptoms persist or worsen, please stop taking this medicine and consult your doctor or pharmacist with this document.
Constipation, loose stool, diarrhea, dry mouth

(1) Store in a cool place away from direct sunlight.
(2) Please keep out of reach of children.
(3) Please do not replace it with another container. (This may cause misuse or change in quality)
(4) Do not use products whose expiration date has passed.

Daiichi Sankyo Healthcare Co., Ltd. Customer Service Office
103-8234 3-14-10 Nihonbashi, Chuo-ku, Tokyo
0120-337-336