Tylenol A (タイレノールA): ingredients, dose and warnings in English
Tylenol A (タイレノールA) is sold in Japan as a class 2 medicine: the box reads 第2類医薬品. In 1 tablet: Acetaminophen 300 mg. The package insert sets the adult dose at 1 tablet, up to 3 times a day, for ages 15 and over.
第2類医薬品 · Class 2
What is in Tylenol A
The package insert lists 1 active ingredient in 1 tablet. The middle column is how each one is written on the Japanese box.
| Ingredient | Name on the box | Amount |
|---|---|---|
| Acetaminophen | アセトアミノフェン | 300 mg |
Additives, as written on the package insert (Japanese)
セルロース,アルファー化デンプン,ヒドロキシプロピルセルロース,カルメロースカルシウム(CMC-Ca),ステアリン酸マグネシウム,ヒプロメロース,D-マンニトール,酸化チタン,タルク,カルナウバロウ
The maker publishes an English package insert for TYLENOL A: Alinamin Pharmaceutical: TYLENOL A (English package insert). This page translates the current Japanese package insert on PMDA.
Source: PMDA (Pharmaceuticals and Medical Devices Agency) — タイレノールA: package insert (添付文書) · Alinamin Pharmaceutical — TYLENOL A: English package insert
What the package insert lists it for
The approved wording of the Japanese package insert, translated. It is what the product is sold for, not advice on what to take.
- 1) Relief of headache, menstrual pain (period pain), toothache, pain after tooth extraction, throat pain, earache, joint pain, neuralgia, lower back pain, muscle pain, pain from stiff shoulders, pain from bruises, pain from fractures, pain from sprains and pain from injuries
- 2) Reducing fever when you have chills/fever
The dose, as written on the package insert
Translated line by line from the directions and dosage (用法・用量) section.
- Acetaminophen per dose
- 300 mg
- Adult dose
- 1 tablet
- Doses a day
- Up to 3
- Age
- 15 and over
- Take the following amount. However, when you have chills/fever due to a cold, avoid taking it on an empty stomach as far as possible.
| Age | Single dose | Doses a day |
|---|---|---|
| Adults (15 and over) | 1 tablet | Up to 3 times. Take doses at least 4 hours apart |
| Under 15 | Do not take |
Notes on the directions
- (1) Follow the directions and dosage exactly.
- (2) How to take out the tablets
- Press the raised part of the PTP sheet containing the tablet firmly with your fingertip to break the aluminium foil on the back, then remove the tablet and take it
- (Accidentally swallowing it as it is can lead to unexpected accidents, such as it piercing the mucous membrane of the oesophagus.)
Do not
The package insert opens with what you must not do.
(If you do not follow these, your current symptoms may get worse, and side effects or accidents become more likely)
1. Do not take it if you are one of the following people
- (1) People who have had allergic symptoms caused by this medicine or its ingredients.
- (2) People who have developed asthma after taking this medicine, or other pain and fever medicines or cold medicines.
2. Do not take any of the following medicines while taking this medicine
- Other pain and fever medicines, cold medicines, sedatives
3. Do not drink alcohol before or after taking it
4. Do not keep taking it for a long time
Ask a doctor, pharmacist or registered salesperson
The package insert says to ask for advice in these cases.
1. If you are one of the following people, ask a doctor, dentist, pharmacist or registered salesperson for advice before taking it
- (1) People who are receiving treatment from a doctor or dentist.
- (2) Women who are pregnant or think they may be pregnant.
- (3) Older people.
- (4) People who have had allergic symptoms caused by medicines etc.
- (5) People who have been diagnosed with the following.
- Heart disease, kidney disease, liver disease, gastric/duodenal ulcer
2. If the following symptoms appear after taking it, they may be side effects, so stop taking it immediately and ask a doctor, pharmacist or registered salesperson for advice, taking this leaflet with you
Possible side effects, by part of the body
- Skin
- rash/redness, itching
- Digestive system
- nausea/vomiting, loss of appetite
- Nervous system
- dizziness
- Other
- excessive drop in body temperature
- In rare cases the following serious symptoms may occur. If they do, see a doctor immediately.
Rare but serious symptoms: name and signs
- Shock (anaphylaxis)
- right after taking it, itchy skin, hives, hoarseness, sneezing, itchy throat, difficulty breathing, palpitations, clouding of consciousness, etc. appear.
- Oculomucocutaneous syndrome (Stevens-Johnson syndrome)
- high fever, bloodshot eyes, eye discharge, sores on the lips, sore throat, widespread rash/redness on the skin, small bumps (small pustules) appearing on reddened skin, the whole body feeling tired, having no appetite, etc. continue or rapidly get worse.
- Toxic epidermal necrolysis
- high fever, bloodshot eyes, eye discharge, sores on the lips, sore throat, widespread rash/redness on the skin, small bumps (small pustules) appearing on reddened skin, the whole body feeling tired, having no appetite, etc. continue or rapidly get worse.
- Acute generalised exanthematous pustulosis
- high fever, bloodshot eyes, eye discharge, sores on the lips, sore throat, widespread rash/redness on the skin, small bumps (small pustules) appearing on reddened skin, the whole body feeling tired, having no appetite, etc. continue or rapidly get worse.
- Drug-induced hypersensitivity syndrome
- the skin turning red over a wide area, a rash all over the body, fever, the body feeling tired, swelling of the lymph nodes (neck, armpits, groin, etc.), etc. appear.
- Liver dysfunction
- fever, itching, rash, jaundice (the skin and the whites of the eyes turn yellow), brown urine, tiredness all over the body, loss of appetite, etc. appear.
- Kidney disorder
- fever, rash, decreased amount of urine, oedema all over the body, tiredness all over the body, joint pain (aching joints), diarrhoea, etc. appear.
- Interstitial pneumonia
- shortness of breath/difficulty breathing when climbing stairs or exerting yourself a little, dry cough, fever, etc. are seen, and these appear suddenly or continue.
- Asthma
- wheezing or whistling sounds when breathing, difficulty breathing, etc. appear.
3. If your symptoms do not improve after taking it 5 to 6 times, stop taking it and ask a doctor, dentist, pharmacist or registered salesperson for advice, taking this leaflet with you
Who can sell it in Japan
The Tylenol A box carries the class 第2類医薬品, which decides who may sell it.
- On the box
- 第2類医薬品 (Class 2). The box reads 第2類医薬品.
- Who can sell it
- A pharmacist or a registered salesperson may sell it.
Source: e-Gov law search (Digital Agency, Japan) — Pharmaceutical and Medical Device Act (医薬品医療機器等法), current text · e-Gov law search (Digital Agency, Japan) — Enforcement Regulations of the Pharmaceutical and Medical Device Act (施行規則), current text
Taking it home
Frequently asked questions
How much Acetaminophen is in Tylenol A?
300 mg in a dose of 1 tablet, according to the Japanese package insert.
How much Tylenol A can an adult take in a day?
The package insert sets the adult dose at 1 tablet, up to 3 times a day. Doses are at least 4 hours apart.
Can children take Tylenol A?
No. The package insert says it is not to be taken under 15.
Do I need a pharmacist to buy Tylenol A?
Tylenol A is a class 2 medicine (第2類医薬品). A pharmacist or a registered salesperson may sell it.
What is Tylenol A called in Japanese?
タイレノールA. The Tylenol A box also carries the class 第2類医薬品.
Related items
Package insert in Japanese: PMDA
Sources for this page
- PMDA (Pharmaceuticals and Medical Devices Agency) タイレノールA: package insert (添付文書)checked October 3, 2026
- Alinamin Pharmaceutical TYLENOL A: English package insertchecked October 3, 2026
- e-Gov law search (Digital Agency, Japan) Pharmaceutical and Medical Device Act (医薬品医療機器等法), current textchecked October 3, 2026
- e-Gov law search (Digital Agency, Japan) Enforcement Regulations of the Pharmaceutical and Medical Device Act (施行規則), current textchecked October 3, 2026
Compiled by Japan Japan !! · Updated October 3, 2026