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Reading a Japanese Medicine Box

The symptom words on the front, the risk class in the corner, the dosage panel on the back - and the instruction almost every foreign reader gets backwards.

Published August 21, 2026 · 14 min read

The short version: a Japanese medicine box answers three questions in three fixed places. Front: which symptom, plus a class label (だい2類医薬品るいいやくひん). Back panel 用法ようほう用量ようりょう: how many, how often, when. Warning block 使用上しようじょう注意ちゅうい: who must not take it. The single most misread word is 食間しょっかん - it means between meals, not during them.

It is always the same scene. Ten at night, a sore throat that arrived out of nowhere, and a drugstore that is - thankfully - still open. Inside, an entire wall of boxes, every one of them white and blue and covered in cheerful text, and not a single word of English anywhere on the shelf that matters.

You do the thing everybody does: pick up two boxes, compare them, understand neither, and buy the one with the friendliest illustration. Sometimes that works. Sometimes you get home with something for hay fever, or with a cold remedy that puts you to sleep at the exact moment you needed to be awake.

What makes this frustrating is that it is not really a language problem. The box is superbly organised - Japanese packaging is legally required to answer specific questions in specific places - and once you can read about forty characters, the wall of boxes turns into a sorted database. This is that forty.

Language guide, not medical advice. When the symptoms are serious, when you take other medication, or when you are pregnant, the person to ask is the 薬剤師やくざいし at the counter - and the phrases for doing that are at the end of this article.
Step 1 · Where you are standing

ドラッグストア, 薬局, 調剤薬局 - three different shops

SignReadingWhat it isGo here when
ドラッグストアRetail drugstore - medicine plus cosmetics, snacks, detergentYou want over-the-counter medicine and everything else.
薬局やっきょくPharmacy in the legal sense, with a 薬剤師 on siteYou need real advice, or a prescription filled.
調剤薬局ちょうざいやっきょくDispensing pharmacy - clusters around clinics and hospitalsYou are holding a 処方箋.
処方箋受付しょほうせんうけつけPrescription counterHand over the prescription and your お薬手帳 here.
薬剤師やくざいしLicensed pharmacistCan sell every class of medicine and answer questions.
登録販売者とうろくはんばいしゃRegistered sellerCan sell class 2 and class 3 medicine - most of the shelf.
薬 is your anchor character. It is 艹 (the grass radical, for medicinal herbs) sitting on top of 楽 (comfort, ease) - the plant that brings relief. Own 薬 and you get 薬局, 薬剤師, 目薬, 胃薬, 風邪薬, お薬手帳 and 薬指 (the ring finger, literally the medicine finger) at almost no extra cost.
Step 2 · The corner label

第1類, 指定第2類, 第3類: what the class number tells you

Every box carries a class in a small square. It is not a strength rating - it is a rule about who is allowed to hand it to you, and it explains why some boxes sit behind glass.

LabelReadingWhat it means in the shop
要指導医薬品ようしどういやくひんRequires face-to-face guidance from a pharmacist. Cannot be bought online.
第1類医薬品だいいちるいいやくひんHighest OTC risk. A 薬剤師 must hand it over with a written explanation - usually kept behind the counter.
指定第2類医薬品していだいにるいいやくひんA flagged subset of class 2 needing extra caution - often shown as ② or 2 in a circle.
第2類医薬品だいにるいいやくひんOpen shelf. Most cold remedies, painkillers and fever medicine live here.
第3類医薬品だいさんるいいやくひんLowest risk - vitamins, mild digestive aids, many eye drops.
Read it as blocks, not as a word. 第 marks an ordinal (第一, 第二 - the same 第 as 第1話, episode 1), 類 means category, 医薬品 is medicine-goods. 第2類医薬品 = category-2 medicinal product. Japanese compounds are Lego, and this is the clearest possible demonstration: four blocks you already half-know, welded into a term that looks impossible.
Step 3 · The front of the box

Symptom kanji: the line that decides everything

Japanese medicine is sold by symptom, printed in large characters near the top. Find your symptom and you have already eliminated ninety per cent of the wall.

Colds, fever and the head

風邪かぜa cold
発熱はつねつfever
解熱げねつfever reducing
頭痛ずつうheadache
鎮痛ちんつうpain relieving
悪寒おかんchills

Throat, nose and chest

のどの痛みのどのいたみsore throat
せきcough
たんtanphlegm
鼻水はなみずrunny nose
鼻づまりはなづまりblocked nose
花粉症かふんしょうhay fever

Stomach and gut

胃痛いつうstomach ache
胃もたれいもたれheaviness / indigestion
胸やけむねやけheartburn
便秘べんぴconstipation
下痢げりdiarrhoea
二日酔いふつかよいhangover

Skin, eyes and body

かゆみkayumiitching
虫刺されむしさされinsect bites
湿疹しっしんrash / eczema
目の疲れめのつかれeye strain
充血じゅうけつbloodshot eyes
肩こりかたこりstiff shoulders
腰痛ようつうlower back pain
筋肉痛きんにくつうmuscle ache
痛 is doing enormous work here. 頭痛, 胃痛, 腰痛, 生理痛, 筋肉痛, 鎮痛 - one character, six products. 痛 is the sickness radical 疒 (a person on a bed, leaning left) wrapped around 甬. Learn 疒 once and a whole aisle becomes semi-readable: 病 (illness), 疲 (fatigue), 症 (symptom), 痒 (itch). This is what people mean when they say kanji gets easier - it does not get easier, it starts overlapping.
Step 4 · What form it comes in

錠, 顆粒, 軟膏: the delivery method

WordReadingForm
/ 錠剤じょう / じょうざいTablet. 1回2錠 = two tablets per dose.
カプセルCapsule.
顆粒 / 散剤かりゅう / さんざいGranules / powder, poured onto the tongue and washed down.
シロップSyrup - usually the children’s version (小児用).
軟膏 / クリームなんこうOintment / cream, applied to the skin (外用).
湿布しっぷMedicated compress patch for shoulders and back. 冷感 cooling / 温感 warming.
点眼薬てんがんやくEye drops - 目薬 (めぐすり) on the friendly boxes.
うがい薬うがいぐすりGargle solution for a sore throat.
絆創膏ばんそうこうAdhesive bandage.
消毒液しょうどくえきAntiseptic.
体温計たいおんけいThermometer - 体 body + 温 temperature + 計 meter.
Step 5 · The back panel

用法・用量 - the six lines that actually matter

Turn the box over and you find a small table. It is always the same table, in the same order. Here is what one looks like, translated line by line.

かぜ薬 A指定第2類医薬品
効能・効果Indications: what it treatsこうのう・こうか — the symptom list from step 3 reappears here in full
用法・用量Directions: how much, how oftenようほう・ようりょう
成人(15歳以上)Adults, 15 and over: 1回2錠、1日3回せいじん — two tablets per dose, three times a day
毎食後After every mealまいしょくご — take within about 30 minutes of eating
15歳未満Under 15: 服用しないことじゅうごさいみまん — do not take
使用上の注意Cautions: who must not take it, and what may happenしようじょうのちゅうい
有効成分Active ingredients - the row that lets you compare two boxesゆうこうせいぶん

Timing words, ranked by how often you meet them

InstructionReadingMeaningIn practice
1日3回いちにちさんかいThree times a day回 = times. 1日2回, 1日1回 follow the same shape.
毎食後まいしょくごAfter every meal毎 every + 食 meal + 後 after.
食前しょくぜんBefore a mealTypically around 30 minutes before eating.
食間しょっかんBetween mealsRoughly two hours after eating - not during the meal.
就寝前しゅうしんぜんBefore sleeping就寝 = going to bed.
頓服とんぷくOnly when symptoms appearAs needed, with a stated minimum gap between doses.
1回2錠いっかいにじょうTwo tablets per dose回 = per occasion, 錠 = tablets.
服用ふくようTo take (internally)服用しないこと = do not take.
内服 / 外用ないふく / がいようInternal / external use外用薬 goes on the skin and must never be swallowed.
成人 / 小児せいじん / しょうにAdult / child小児用 on the front = the children’s formulation.
15歳以上 / 15歳未満じゅうごさいいじょう / みまん15 and over / under 15以上 includes the number; 未満 excludes it.
The one everybody gets wrong. 食間 looks like it should mean “during the meal” - 間 is between / interval, and English instinct fills in the rest. It means the gap between two meals, when your stomach is empty, about two hours after eating. Taking a 食間 medicine with food is not the instruction you were given. The pair to memorise together is 食前 / 食後 / 食間: before, after, and in the empty space between.
以上 and 未満 are worth ten minutes of your life. They run the whole country: 15歳以上 on medicine, 1,000円以上 on free-shipping banners, 3個以上 on discount signs, 18歳未満 on age restrictions. 以上 = that number and above (inclusive), 未満 = below that number (exclusive), and 以下 = that number and below (inclusive). Three compounds, thousands of signs.
Step 6 · The warning block

使用上の注意 - the part worth reading slowly

PhraseReadingMeaning
してはいけないことThings you must not do - the strongest section on the box.
相談することそうだんすることConsult a doctor or pharmacist first (pregnancy, other medication, chronic illness).
眠くなることがありますねむくなる…May cause drowsiness.
運転しないでくださいうんてん…Do not drive after taking this.
妊娠中 / 授乳中にんしんちゅう / じゅにゅうちゅうWhile pregnant / while breastfeeding.
副作用ふくさようSide effects.
長期連用しないちょうきれんよう…Do not take continuously for a long period.
小児の手の届かない所に保管しょうに…ほかんStore out of reach of children.
直射日光を避けちょくしゃにっこうをさけKeep out of direct sunlight.
眠くなる is the difference between a good day and a lost one. Many Japanese cold and hay-fever remedies are sedating, and the box says so plainly. If you need to stay awake, look for the opposite claim on the front: ねむくなりにくい (unlikely to cause drowsiness) or ステロイド on skin products.
Step 7 · At the counter

Five sentences that get you the right box

のどいたいんですが、なにかありますか。のどがいたいんですが、なにかありますか。My throat hurts - do you have something for that?

ねつがあります。ねつがあります。I have a fever.

ねむくならないものはありますか。ねむくならないものはありますか。Is there one that doesn’t make you drowsy?

これは1にちなんかいみますか。これはいちにちなんかいのみますか。How many times a day do I take this?

ほかくすりんでいます。大丈夫だいじょうぶですか。ほかのくすりをのんでいます。だいじょうぶですか。I’m taking other medication. Is this okay?

One more thing worth knowing: the お薬手帳くすりてちょう is a small booklet that records everything ever dispensed to you. Pharmacies will offer you one, it costs nothing, and it is the fastest way to answer that last question honestly.

Why this vocabulary sticks so badly - and the fix

Drugstore Japanese has a cruel property: you only need it when you feel terrible. It is the one moment when careful decoding is impossible, and the one moment when getting it right actually matters. Studying it in advance feels pointless; needing it without having studied it feels awful.

The realistic answer is to make the aisle readable on the spot, and then let that moment turn into memory automatically.

1. Read the box where you are standing. Kanjijo’s OCR scanner reads a photo of the packaging and returns the reading and meaning of every character - the symptom line, the class label, the dosage table, the warning block.

2. Keep what you scanned. Every character and word can go straight into the SRS engine, each with an exclusive mnemonic, so 服用, 毎食後 and 眠くなる are simply readable next time instead of solvable.

3. Review without deciding to. The home and lock screen widgets surface due cards on the screen you already look at forty times a day, and the interactive test widget quizzes you in three seconds without opening the app.

4. Be able to ask, not just read. The conversation and shadowing tracks drill exactly this kind of exchange out loud, and dictation trains the harder half - understanding the pharmacist’s answer.

And behind it, the full course for whenever you want it: N5–N1 kanji, vocabulary and grammar banks, JLPT reading and JLPT listening practice, and mock JLPT tests.

Quick reference

食前 / 食後 / 食間
Before a meal / after a meal / between meals (about 2 hours after eating).
頓服
Only when symptoms appear, with a minimum gap between doses.
1回2錠、1日3回
Two tablets per dose, three doses per day.
15歳以上 / 15歳未満
15 and over (inclusive) / under 15 (exclusive).
第1類 / 指定第2類 / 第2類 / 第3類
Risk classes. Class 1 comes from a pharmacist; classes 2 and 3 sit on the shelf.
内服 / 外用
Taken internally / applied externally. 外用薬 must never be swallowed.
眠くなることがあります
May cause drowsiness. The opposite claim is 眠くなりにくい.
相談すること
Ask a doctor or pharmacist before taking - pregnancy, other medication, chronic conditions.

Frequently Asked Questions

食間 (しょっかん) means between meals - not during them. Despite the character 間 suggesting in the middle of, it refers to the empty stretch roughly two hours after eating, when the stomach is no longer full. This is one of the most misread instructions on Japanese packaging for foreign readers. Its neighbours are 食前 (しょくぜん, before a meal, usually about 30 minutes), 食後 (しょくご, after a meal, usually within 30 minutes), 毎食後 (まいしょくご, after every meal) and 就寝前 (しゅうしんぜん, before going to sleep).

頓服 (とんぷく) means taken only when symptoms appear, rather than on a fixed schedule - the Japanese equivalent of as needed. A 頓服 painkiller or fever medicine is taken at the moment of the headache or fever, and the packaging will state a minimum interval before the next dose. It contrasts with the scheduled instruction 1日3回 毎食後 (three times a day after every meal), which is taken whether or not symptoms are present at that hour.

They are Japan’s risk classes for over-the-counter medicine, printed on the front of every box. 第1類医薬品 carries the highest risk and must be handed over by a 薬剤師 (pharmacist) with a written explanation, so it usually sits behind the counter. 指定第2類医薬品 is a flagged subset of the second class requiring extra caution. 第2類医薬品 and 第3類医薬品 can be sold by a 登録販売者 (registered seller) and sit on the open shelves - most cold remedies and painkillers are class 2. Above all of these is 要指導医薬品, which requires face-to-face pharmacist guidance and cannot be sold online.

A ドラッグストア is a retail shop selling over-the-counter medicine alongside cosmetics, snacks and household goods. A 薬局 is a pharmacy in the legal sense, staffed by a 薬剤師 and able to dispense prescriptions; a 調剤薬局 is one that exists mainly for that purpose and clusters around hospitals and clinics. If you are carrying a 処方箋 (しょほうせん, prescription) you need a counter marked 処方箋受付. Many large drugstores contain a dispensing counter inside, so the two categories overlap in practice.

Point a camera at it. Kanjijo’s OCR scanner reads the box and returns the reading and meaning of every character on the symptom line, the dosage panel and the warning block, which answers the question standing in the aisle. What makes the second visit easier is that any character or word you scan can be sent into the app’s SRS engine with an exclusive mnemonic attached, so the packaging vocabulary - 錠, 服用, 毎食後, 眠くなる - becomes something you simply read next time rather than something you have to solve.

Turn the aisle into information

Kanjijo reads what you cannot: an OCR scanner for any box, label or sign, exclusive mnemonics for every kanji and word, an SRS engine that schedules each review for the moment before you forget, and home, lock screen and interactive test widgets that keep it all in front of you. Plus the full N5–N1 kanji, vocabulary and grammar banks, JLPT reading and listening practice, mock tests, conversation, shadowing and dictation. Free on iPhone.

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