What Class 1, 2 and 3 Mean at a Japanese Drugstore

Updated 2026-08-19

Reviewed 2026-08-19

The number on a Japanese medicine box is a safety and sales category, not a score for how powerful the product is. It tells you who may sell it, how much information the seller must provide and whether you can reach it yourself. A separate rule may also trigger questions at checkout, even when the box is Class 2 or Class 3.

Read the category before comparing products

Japan separates nonprescription medicines into 要指導医薬品, guidance-required medicines, and general OTC medicines marked 第1類医薬品, 第2類医薬品 or 第3類医薬品. The category reflects risks such as adverse reactions and interactions, plus the information required at sale. It does not prove that Class 1 works better than Class 3 for your symptom.

A boxed or circled 2 marks 指定第2類医薬品, a subset of Class 2 needing particular care. This does not turn it into Class 1, but it is a good reason to ask the pharmacist or registered seller about contraindications, age limits, drowsiness and overlap with medicines you already take.

• 要指導医薬品: pharmacist guidance is required before sale
• Class 1: only a pharmacist may sell it and written information is required
• Class 2 and designated Class 2: pharmacist or registered seller; information is recommended
• Class 3: pharmacist or registered seller; the lowest risk tier in this system

A staffed store may still be unable to sell Class 1

A registered seller, shown as 登録販売者, may handle Class 2 and Class 3 products but not guidance-required or Class 1 medicines. If the pharmacist has finished their shift, the shop can remain open while the Class 1 counter is closed. A shelf card or empty display may therefore mean ask at the counter, not sold out.

Show the package photo or product name and ask 薬剤師はいますか if the label says Class 1. Expect questions about the intended user, age, symptoms, allergies, pregnancy, medical conditions and other medicines. The pharmacist may decline a sale if the answers do not support safe use. A prescription medicine is a different category and normally requires a Japanese clinician's prescription.

Some products get extra checks from May 1, 2026

Japan now labels medicines containing specified ingredients as 指定濫用防止医薬品, designated abuse-prevention medicines. The rule cuts across the Class 1, 2 and 3 system. Cold, cough, allergy or sleep-related packaging may be subject to it, so do not predict the checkout process from the class number alone.

A pharmacist or registered seller must confirm matters such as age, other medicines being used, recent purchases of the same designated products and the reason for a large pack or multiple packs. A customer under 18 may be asked for a name and proof of age, and cannot be sold a large-capacity product or multiple packs. Adults can also be refused extra quantities when appropriate use cannot be confirmed. These are safety checks, not a tourist surcharge or tax-free condition.

Check the user and ingredients before the price

Do not shop only by brand, popularity or the symptom picture on the front. Photograph the front and ingredient panel, identify who will actually use it, then tell the qualified seller about age, allergies, pregnancy, chronic conditions and every medicine or supplement currently used. Read the enclosed insert before taking it. PMDA's official database lets you search current Japanese package inserts by product or ingredient.

Stop self-selection and seek medical help for severe symptoms, breathing difficulty, altered consciousness, signs of a serious allergic reaction or symptoms that persist or worsen. Ikura Cart can help you keep track of a shelf price and identify product text while shopping, but it cannot decide whether a medicine is safe for you. The package insert and advice from a pharmacist, registered seller or clinician take priority.