Ringuru N
リングルN
Acetaminophen pain reliever and fever reducer
Tablets
Fever reduction; and relief of headache, toothache, post-extraction pain, sore throat, earache, joint pain, nerve pain, back pain, muscle pain, shoulder pain, bruise pain, fracture pain, sprain pain, menstrual pain, and trauma pain
Active Ingredients (per 9 tablets)
Acetaminophen 900mg
Anhydrous caffeine 150mg
Inactive Ingredients
Aluminum silicate, hydroxypropyl starch, cellulose, magnesium stearate, hydroxypropyl cellulose
Instructions for Use
- ✓Take at intervals of at least 4 hours. Try to avoid taking on an empty stomach. For children, use only under adult supervision.
| Age | Dose per use | Times per day |
|---|---|---|
| Adults (15 years and older) | 3 tablets | Up to 3 times daily |
| 11–14 years | 2 tablets | Up to 3 times daily |
| 5–10 years | 1 tablet | Up to 3 times daily |
| Under 5 years | Do not use | — |
- ✕Do not use if you:
- Have had an allergic reaction to this medicine or any of its ingredients.
- Have had asthma after taking this medicine, antipyretic analgesics, or cold medicines.
- ✕Do not take the following medicines while using this product: other pain relievers, cold medicines, or sedatives.
- ✕Do not drink alcohol before or after use.
- ✕Do not use long-term.
- ⚠Consult a doctor, dentist, pharmacist, or registered salesperson before use if you:
- Are under medical treatment by a doctor or dentist.
- Are pregnant or possibly pregnant.
- Are elderly.
- Have had allergic reactions to medicines.
- Have been diagnosed with: cardiac disease, kidney disease, liver disease, or gastric/duodenal ulcer.
- ✓Stop use and consult a doctor, pharmacist, or registered salesperson if any of the following occur:
- • Skin: rash, redness, or itching.
- • Digestive: nausea, vomiting, or loss of appetite.
- • Neurological: dizziness.
- • Other: excessive drop in body temperature.
- ✓Seek immediate medical attention if any of the following serious symptoms occur:
- • Shock (anaphylaxis): itchy skin, hives, hoarseness, difficulty breathing, palpitation, or confusion.
- • Stevens-Johnson syndrome / toxic epidermal necrolysis / acute generalized exanthematous pustulosis: high fever, eye redness, lip sores, widespread rash, or small pustules on reddened skin.
- • Drug-induced hypersensitivity syndrome: widespread skin redness, full-body rash, fever, fatigue, or swollen lymph nodes.
- • Liver disorders: fever, itching, rash, jaundice, brown urine, or fatigue.
- • Kidney disorders: fever, rash, decreased urination, swelling, or joint pain.
- • Interstitial pneumonia: shortness of breath on exertion, dry cough, or fever appearing or persisting suddenly.
- • Asthma: wheezing or difficulty breathing.
- ✓If symptoms do not improve after 5–6 doses, stop use and consult a doctor, dentist, pharmacist, or registered salesperson, bringing this package insert with you.
- ✓Press the convex side of the PTP blister sheet firmly with your fingertip to break the aluminum foil on the back, then remove the tablet. Do not accidentally swallow the PTP sheet — this may cause esophageal injury.
- ✓Store in a cool, dry place away from direct sunlight and humidity. Keep out of reach of children. Do not transfer to another container. Do not use after the expiry date.
Additional Information
Contains acetaminophen to reduce fever and relieve pain, with anhydrous caffeine to enhance its effect. Non-drowsy formula — suitable for adults and children aged 5 and older.
Sources & Documents
- Japanese product page
- English PDF
- Japanese PDF
- Last verified: May 30, 2026
Related Medicines
For informational purposes only. Always consult a doctor or pharmacist before taking any medication.