Calonal A
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Analgesic and antipyretic - single-ingredient acetaminophen tablets for adults
Tablets (12, 24, or 36 tablets)
Relief of headache, menstrual pain, toothache, post-extraction pain, sore throat, lower back pain, joint pain, neuralgia, muscle pain, shoulder stiffness, ear pain, bruise pain, fracture pain, sprain pain, and traumatic pain. Relief of chills and fever.
Active Ingredients (per 1 tablet)
Acetaminophen 300 mg
Inactive Ingredients
Cellulose, partially pregelatinized starch, polyvinyl alcohol (partially saponified), magnesium stearate, l-menthol, flavoring, lactose
Instructions for Use
- βTake with water or lukewarm water. Try to avoid taking on an empty stomach. Allow at least 4 hours between doses.
| Age | Dose per use | Times per day |
|---|---|---|
| Adults (15 years and older) | 1 tablet | Up to 3 times daily |
| Under 15 years | Do not use | - |
- βFollow the prescribed dosage instructions carefully.
- βTo remove tablets from the PTP sheet, press firmly on the raised side of the sheet to break through the aluminum foil on the back, then take out the tablet. Do not swallow the PTP sheet, as it may puncture the esophageal lining and cause serious injury.
- βDo not use this product if you:
- (1) Have ever had an allergic reaction to this product or any of its ingredients.
- (2) Have ever experienced asthma after taking this product, another pain reliever/fever reducer, or a cold medicine.
- βDo not use any of the following medicines while taking this product: other pain relievers/fever reducers, cold medicines, or sedatives.
- βDo not drink alcohol before or after taking this product.
- βDo not use for an extended period.
- βSeek immediate medical attention if any of the following serious symptoms appear:
- β’ Shock (anaphylaxis): shortly after taking, itching, hives, hoarseness, sneezing, throat itching, difficulty breathing, palpitations, or clouded consciousness
- β’ Stevens-Johnson syndrome / Toxic epidermal necrolysis / Acute generalized exanthematous pustulosis: high fever, eye redness, eye discharge, lip sores, sore throat, widespread skin rash or redness, small pustules on reddened skin, general malaise, or loss of appetite; these symptoms may persist or suddenly worsen
- β’ Drug-induced hypersensitivity syndrome: widespread skin redness, generalized rash, fever, malaise, or swelling of lymph nodes (neck, armpits, groin)
- β’ Liver dysfunction: fever, itching, rash, jaundice (yellowing of the skin or eyes), dark urine, general malaise, or loss of appetite
- β’ Kidney disorder: fever, rash, decreased urination, general swelling, general malaise, joint pain, or diarrhea
- β’ Interstitial pneumonia: shortness of breath when climbing stairs or with slight exertion, difficulty breathing, dry cough, or fever; these symptoms may appear suddenly or persist
- β’ Asthma: wheezing or hissing when breathing, or difficulty breathing
- β Consult a doctor, dentist, pharmacist, or registered salesperson before use if you:
- (1) Are under medical or dental treatment.
- (2) Are pregnant or possibly pregnant.
- (3) Are elderly.
- (4) Have had allergic reactions to medicines or other substances.
- (5) Have been diagnosed with heart disease, kidney disease, liver disease, or gastric or duodenal ulcer.
- βStop use and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you, if any of the following occur after taking:
- Skin: rash, redness, itching
- Digestive system: nausea, vomiting, loss of appetite
- Nervous system: dizziness
- Other: excessive drop in body temperature
- βIf symptoms do not improve after 5-6 doses, stop and consult a doctor, dentist, pharmacist, or registered salesperson, bringing this package insert with you.
- βStore in a cool, dry place away from direct sunlight. Keep out of reach of children. Do not transfer to another container. Do not use after the expiry date.
Additional Information
Calonal A is a single-ingredient acetaminophen pain reliever and fever reducer from Daiichi Sankyo Healthcare. It contains no sedative ingredients. The official product page lists 12, 24, and 36-tablet packages; the Amazon ASIN used here is for the 36-tablet package.
Sources & Documents
- Japanese product page
- Japanese PDF
- Last verified: August 15, 2026
Related Medicines
For informational purposes only. Always consult a doctor or pharmacist before taking any medication.