
Kaigen is a cold medicine containing herbal ingredients that help the body's recovery.
Draws out the self-healing power with natural ingredients,
For colds, just right for everyone, works properly.
A cold medicine you want to have ready for your family during cold season.

Features of Kaigen
Works just right and effectively for the body and everyone.
Double formulation of medicinal herbs × Western medicine
Medicinal herbs that enhance self-healing power
Medicinal herbs (Kanzou, Keihi, Shokyo) help draw out the body's self-healing power with natural medicinal effects and assist the body's recovery from colds.

Western medicine that suppresses cold symptoms
Western medicine suppresses the unpleasant symptoms of colds and reduces physical exhaustion. It does not contain ingredients (antihistamines) that cause drowsiness or dry mouth and nose.

What symptoms does it relieve?
Effective for sore throat, headache, and more.
Kaigen alleviates various cold symptoms (sore throat, fever, headache, cough, phlegm, chills, joint pain, muscle pain). With a blend of medicinal herbs, it draws out the body's self-healing power, working just right and effectively. It is a cold medicine you want to have ready for your family.
"Medicinal herbs" and "Western medicines" used in Kaigen
| Kanzou (Licorice) |
"Kanzou," most commonly used in Kampo prescriptions, has anti-allergic, detoxifying, and anti-inflammatory effects, enhances the body's resistance, and boosts the effectiveness of other medicines. It is a medicinal herb known for its efficacy and has been used worldwide since ancient times. |
| Keihi (Cinnamon Bark) |
"Keihi," known worldwide as cinnamon for its distinctive taste and aroma, has a sweating effect. It is often combined with medicinal herbs like Maou and Kakkon, which have sweating and fever-reducing effects, and is said to warm the body and improve blood circulation. |
| Shokyo (Ginger) |
Commonly known as ginger, "Shokyo" has various effects such as warming the body, improving blood circulation, boosting immunity, suppressing nausea, and promoting digestion, and is included in many Kampo medicines. |
| Acetaminophen |
Reduces fever and alleviates headaches, joint pain, and more. |
| dl-methylephedrine hydrochloride |
Suppresses coughs and soothes the throat. |
| Anhydrous caffeine |
Relieves headaches. |
● Features
■ This cold medicine is effective for symptoms such as sore throat, fever, and headache at the onset of a cold.
■ In addition to Western medicine ingredients effective for various cold symptoms, three types of herbal ingredients (licorice powder, cinnamon powder, ginger powder) enhance self-healing power and help the body recover.
■ This is a non-pyrine cold medicine that does not contain ingredients that cause drowsiness, dry mouth, or difficulty urinating (antihistamines) or ingredients that tend to cause constipation (dihydrocodeine phosphate).
■ It can be taken by the whole family, from children to adults.
■ Kaigen is a powdered medicine with taste and aroma designed for easy administration.
【Designated Class 2 OTC Drug】
● Efficacy/Effects
Relief of various cold symptoms (sore throat, cough, phlegm, chills, fever, headache, joint pain, muscle pain)
<Precautions related to Efficacy/Effects>
● Dosage and Administration
Take the following single dose three times a day, preferably within 30 minutes after meals, with tea or hot water.
[Age: Single dose]
15 years and older: 1 packet
11 years and older to under 15 years: 2/3 packet
7 years and older to under 11 years: 1/2 packet
3 years and older to under 7 years: 1/3 packet
1 year and older to under 3 years: 1/4 packet
Under 1 year: Do not administer
<Precautions related to Dosage and Administration>
(1) Strictly adhere to the prescribed dosage and administration.
(2) When administering to children, do so under the guidance and supervision of a guardian.
(3) For infants under 2 years old, prioritize consulting a physician and administer only if unavoidable.
● Ingredients/Quantity
Per 3 packets (2.1g)
Acetaminophen 900mg
dl-Methylephedrine hydrochloride 30mg
Anhydrous caffeine 75mg
Licorice powder 200mg
Cinnamon powder 200mg
Ginger powder 100mg
〔Additives〕
Sweet tea powder, l-menthol, d-borneol, clove oil, vanillin, fragrance, anhydrous calcium hydrogen phosphate
<Precautions related to Ingredients/Quantity>
● Dosage Form
Powder (oral - powder)
● Precautions for Use
■Do not do (Contraindications)
(Failure to comply may worsen current symptoms or increase the risk of side effects or accidents)
1. Do not take if you fall under the following:
(1) Have had allergic reactions to this medicine or its ingredients.
(2) Have had asthma triggered by this medicine or other cold medicines, antipyretic analgesics.
2. Do not use any of the following medicines while taking this medicine:
Other cold medicines, antipyretic analgesics, sedatives, antitussives, expectorants.
3. Do not drink alcohol before or after taking this medicine.
4. Do not use continuously for a long time.
■Consult
1. Consult a doctor, pharmacist, or registered seller before taking if you fall under the following:
(1) Receiving treatment from a doctor or dentist.
(2) Pregnant or possibly pregnant.
(3) Breastfeeding.
(4) Elderly.
(5) Have had allergic reactions to medicines.
(6) Have the following symptoms:
High fever
(7) Have been diagnosed with:
Thyroid dysfunction, diabetes, heart disease, hypertension, liver disease, kidney disease, stomach or duodenal ulcer.
2. If the following symptoms appear after taking this medicine, stop taking it immediately and consult a doctor, pharmacist, or registered seller with this document as it may be side effects:
[Affected area: Symptoms]
Skin: Rash, redness, itching
Digestive system: Nausea, vomiting, loss of appetite
Nervous system: Dizziness
Others: Excessive lowering of body temperature
Rarely, the following serious symptoms may occur. In such cases, seek immediate medical attention.
[Name of Symptom: Symptom]
Shock (Anaphylaxis): Immediately after taking, itching of the skin, hives, hoarseness, sneezing, itchy throat, difficulty breathing, palpitations, clouding of consciousness, etc. appear.
Stevens-Johnson syndrome: High fever, eye redness, eye discharge, lip erosion, sore throat, widespread rash and redness of the skin, small bumps (small pustules) on reddened skin, general malaise, loss of appetite, etc. persist or rapidly worsen.
Toxic epidermal necrolysis: High fever, eye redness, eye discharge, lip erosion, sore throat, widespread rash and redness of the skin, small bumps (small pustules) on reddened skin, general malaise, loss of appetite, etc. persist or rapidly worsen.
Acute generalized exanthematous pustulosis: High fever, eye redness, eye discharge, lip erosion, sore throat, widespread rash and redness of the skin, small bumps (small pustules) on reddened skin, general malaise, loss of appetite, etc. persist or rapidly worsen.
Drug hypersensitivity syndrome: Widespread redness of the skin, systemic rash, fever, fatigue, swelling of lymph nodes (neck, armpits, groin, etc.) appear.
Liver dysfunction: Fever, itching, rash, jaundice (yellowing of skin and whites of eyes), dark urine, general malaise, loss of appetite, etc. appear.
Kidney disorder: Fever, rash, decreased urine output, generalized swelling, general malaise, joint pain, diarrhea, etc. appear.
Interstitial pneumonia: Shortness of breath or difficulty breathing when climbing stairs or exerting slightly, dry cough, fever, etc. appear suddenly or persist.
Asthma: Wheezing or whistling sounds when breathing, difficulty breathing, etc. appear.
3. If symptoms do not improve after 5 to 6 doses, stop taking and consult a doctor, pharmacist, or registered seller with this document.
●Precautions for Storage and Handling
(1) Store in a cool, dry place away from direct sunlight.
(2) Keep out of reach of children.
(3) If a packet is divided for administration, fold the packaging back as it was and use within 2 days.
(4) Do not transfer to another container. (This may cause misuse or quality changes.)
(5) Do not use the product past the expiration date indicated on the outer box.