マグミット錠100mg
Magnesium oxide (laxative)
Magnesium oxide · マグミット
Magnesium oxide is Japan's first-choice laxative, unlike the polyethylene glycol (MiraLAX) or senna products common abroad. Prescribed as Magmitt 250–500 mg tablets and sold OTC, it is gentle and non-habit-forming. Visitors with kidney disease should ask a pharmacist first.
At a glance
- Prescription status
- Prescription and OTC
- Over the counter
- Class 3
- Bringing it into Japan
- ✓ 1 month Rx / 2 months OTC
- Names abroad
- Phillips' Milk of Magnesia (similar) · Milk of Magnesia (similar)
Over the counter
OTC Class 3, sold in every drugstore as a gentle non-stimulant laxative.
Finding it in a Japanese drugstore
- Look for this on the package
- 酸化マグネシウム（マグミット）
- Magnesium oxide
- Common product names
- 酸化マグネシウムE便秘薬スルーラックデルジェンヌ
- Category printed on the package
- Class 3
- Sold at any drugstore or pharmacy, and online.
Show this page to the pharmacist or staff. Prices and packaging vary by store, so look for the Japanese ingredient name.
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Prescription products in Japan
28 productsProducts on Japan's national drug price list. Prescription only: a clinic visit is needed, and pharmacies may substitute a generic with the same ingredient.
| Brand names | マグミット |
|---|---|
| Generic | 27 generic products |
| Dosage forms | Oral |
| Strengths (oral) | 100mg · 200mg · 250mg · 300mg · 330mg · 400mg · 500mg |
| Official price (per tablet or unit) | ¥6.1 – ¥12.7 Official NHI drug price. Patients with Japanese insurance pay 10–30%; visitors without it pay the full price plus consultation fees. |
Product names are shown in Japanese, exactly as printed on the package and the prescription. Show this page at the pharmacy.
酸化マグネシウム細粒83%
2 manufacturers: ケンエー · ヨシダ
酸化マグネシウム錠200mg
ヨシダ
酸化マグネシウム錠250mg
5 manufacturers: TX · VTRS · ケンエー · モチダ · ヨシダ
酸化マグネシウム錠300mg
ヨシダ
酸化マグネシウム錠330mg
5 manufacturers: TX · VTRS · ケンエー · モチダ · ヨシダ
酸化マグネシウム錠400mg
ヨシダ
酸化マグネシウム錠500mg
3 manufacturers: VTRS · ケンエー · ヨシダ
All listed products (28) · Drug price list as of 2026-08-12
| マグミット錠100mg | Oral · ¥12.7/tablet |
|---|---|
| マグミット細粒83% · Generic | Oral · ¥8.6/g |
| マグミット錠200mg · Generic | Oral · ¥6.3/tablet |
| マグミット錠250mg · Generic | Oral · ¥6.3/tablet |
| マグミット錠330mg · Generic | Oral · ¥6.3/tablet |
| マグミット錠500mg · Generic | Oral · ¥6.3/tablet |
| 酸化マグネシウム250mg錠 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム330mg錠 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム500mg錠 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム細粒83%〈ハチ〉 · Generic | Oral · ¥8.4/g |
| 酸化マグネシウム細粒83%「ケンエー」 · Generic | Oral · ¥8.4/g |
| 酸化マグネシウム細粒83%「ヨシダ」 · Generic | Oral · ¥8.4/g |
| 酸化マグネシウム錠200mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠250mg「TX」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠250mg「VTRS」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠250mg「ケンエー」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠250mg「モチダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠250mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠300mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠330mg「TX」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠330mg「VTRS」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠330mg「ケンエー」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠330mg「モチダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠330mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠400mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠500mg「VTRS」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠500mg「ケンエー」 · Generic | Oral · ¥6.1/tablet |
| 酸化マグネシウム錠500mg「ヨシダ」 · Generic | Oral · ¥6.1/tablet |
Bringing it into Japan
Up to a 1-month supply of prescription medicine, or 2 months of OTC medicine, without any paperwork. For more, apply for a Yakkan Shoumei (import confirmation) before travel.
Getting it prescribed in Japan
Any clinic can prescribe it after a consultation. Bring the original packaging or a medication list. Use the hospital finder to find clinics with English-speaking staff or an international patient office.
Names abroad
| US | Phillips' Milk of Magnesia (similar) |
|---|---|
| UK | Milk of Magnesia (similar) |
| Korea | 마그밀 |
| China | 氧化镁 |
| Taiwan | 氧化鎂 |
Sources
- Health Insurance Claims Review & Reimbursement Services — Drug master (NHI drug price list) shinryohoshu.mhlw.go.jp — 2026-08-12
- Ministry of Health, Labour and Welfare — Bringing medicines for personal use into Japan mhlw.go.jp
This page describes how a medicine is regulated and sold in Japan. It is not medical advice and does not cover dosing for your situation; follow your doctor's and pharmacist's instructions.