Sleep Aids
If you’ve been having a little trouble sleeping lately, an over-the-counter sleep aid might help you catch up.
Select a product from the left or scroll through to see the whole list of the most popular sleep aids in Japan.
If you take an MAOI, warfarin, blood pressure medication, or any other regular medication for a mental or physical disease or condition, are pregnant, nursing, or simply not sure, consult your doctor before taking any over-the-counter medication.
Japanese OTC labels often do not provide medication-specific warnings, so if you're unsure of drug interactions, be safe and ask your doctor before taking anything.
Sleep Aids
Drewell
Active ingredient (per 2 tablets):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Croscarmellose sodium, anhydrous silicic acid, cellulose, lactose, hydroxypropyl cellulose, hypromellose, polyethylene glycol, magnesium stearate, talc, titanium oxide
Instructions for use:
Adults and children 15 years and older: Take 2 tablets with water before bed. Do not exceed more than 2 tablets per 24 hours. If you take more than 2 tablets before bed, the medication will have the opposite effect and make it more difficult for you to sleep. This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: http://www.ssp.co.jp/product/all/drw/
Drewel Ex
Active ingredient (per 1 capsule):
- Diphenhydramine HCl 50mg
- Diphenhydramine HCl 50mg
Inactive ingredients:
Gelatin, D-sorbitol, povodone, polyethylene glycol, glycerin, benzyl alcohol, fragrance
Instructions for use:
Adults and children 15 years and older: Take 1 capsule with water before bed. Do not exceed more than 1 capsule per 24 hours. If you take more than one capsule before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: http://www.ssp.co.jp/product/all/drw-ex/
Neoday
Active ingredients (per 2 tablets):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Lactose, hydroxypropyl cellulose, anhydrous silicic acid, croscarmellose sodium, magnesium stearate, hypromellose, white sugar, titanium oxide, carnauba wax
Instructions for use: Adults and children 15 years and older: Take 2 tablets with water before bed. Do not exceed more than 2 tablets per 24 hours. If you take more than 2 tablets before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: http://www.taisho.co.jp/neoday/summary/
Shiseido Dreamio
Active ingredient (per 2 tablets):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Hydroxypropyl cellulose, carmellose calcium, cellulose, lactose hydrate, magnesium stearate, hypromellose, polyethylene glycol
Instructions for use:
Adults and children 15 years and older: Take 2 tablets with water before bed. Do not exceed more than 2 tablets per 24 hours. If you take more than 2 tablets before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: http://medical.shiseido.co.jp/dreamio/
My Rest S
Active ingredient (per 1 capsule):
- Diphenhydramine HCl 50mg
Inactive ingredients: Citric acid, magnesium stearate, polyethylene glycol, gelatin, succinylated gelatin, glycerin, D-sorbitol, blue #1
Instructions for use:
Adults and children 15 years and older: Take 1 capsule with water before bed. Do not exceed more than 1 capsule per 24 hours. If you take more than one capsule before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: http://search.sato-seiyaku.co.jp/pub/search/dispproduct.php?productid=872&ref=
G SleeP
Active ingredients (per tablet):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Cellulose, hydroxypropyl cellulose, magnesium stearate, hypromellose, polyethylene glycol, titanium oxide
Instructions for use:
Adults and children 15 years and older: Take 1 tablets with water before bed. Do not exceed more than 1 tablet per 24 hours. If you take more than 1 tablet before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult with a physician.
Japanese source: https://www.daiichisankyo-hc.co.jp/products/details/g-sleeP/
Riposmin
Active ingredient (per 2 tablets):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Cellulose, lactose hydrate, hydroxypropyl cellulose, croscarmellose sodium, hypromellose, titanium oxide, polyethylene glycol, carnauba wax, magnesium stearate
Instructions for use:
Adults and children 15 years and older: Take 2 tablets with water before bed. Do not exceed more than 2 tablets per 24 hours. If you take more than 2 tablets before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult a physician.
English source: https://www.kokando.co.jp/en/products_improved_hypnotics.html
Japanese PDF: https://www.kokando.co.jp/pdf/products/tenpusyo_riposmin.pdf
Japanese source: https://www.kokando.co.jp/products_improved_hypnotics.html
Yone-Ru
Active ingredient (per 2 tablets):
- Diphenhydramine HCl 50mg
Inactive ingredients:
Hydroxypropyl cellulose, lactose hydrate, polyethylene glycol, magnesium stearate, hypromellose, titanium oxide, carnauba wax
Instructions for use:
Adults and children 15 years and older: Take 2 tablets with water before bed. Do not exceed more than 2 tablets per 24 hours. If you take more than 2 tablets before bed, the medication will have the opposite effect and make it more difficult for you to sleep.
This medication may make you drowsy the next day. If you continue to have trouble sleeping after 3 days taking this medication, stop taking it and consult a physician.
The company that makes this product does not provide information in English.
Japanese PDF: http://www.yoneda.co.jp/pro/suimin/suimin.html
Japanese source: http://www.yoneda.co.jp/pdf/yone-ru.pdf
Sleep Aids Vocabulary
| Japanese | Romaji | English | Pronunciation |
|---|---|---|---|
| 睡眠改善薬 (すいみんかいぜんやく) |
suiminkaizenyaku | Sleep aid | |
| 不眠症 (ふみんしょう) |
fuminshou | Insomnia | |
| 寝つきが悪い (ねつきがわるい) |
Netsuki ga warui | Difficulty falling asleep | |
| 眠りが浅い (ねむりがあさい) |
Nemuri ga asai | Difficulty staying asleep | |
| 一時的 (いちじてき) |
ichijiteki | Temporary | |
| 症状の緩和 (しょうじょうのかんわ) |
Shoujou no kanwa | Relief of symptoms | |
| 抗ヒスタミン (こうひすたみん) |
kouhisutamin | Antihistamine | |
| 服用回数 (ふくようかいすう) |
fukuyoukaisuu | Times per day | |
| ぬるま湯 (ぬるまゆ) |
nurumayu | Lukewarm water | |
| 有効成分 (ゆうこうせいぶん) |
yuukouseibun | Active ingredients | |
| 服用 (ふくよう) |
fukuyou | Dose | |
| 症状 (しょうじょう) |
shoujou | Symptom | |
| 副作用 (ふくさよう) |
fukusayou | Side effect | |
| アレルギー | arerugii | Allergy | |
| ジフェンヒドラミン塩酸塩 (じふぇんひどらみんえんさんえん) |
jifenhidoraminensanen | Diphenhydramine hydrochloride (Benadryl) |
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