メジコン散10%
Dextromethorphan (Robitussin DM, Delsym)
Dextromethorphan hydrobromide · メジコン
Dextromethorphan is Japan's standard non-opioid cough suppressant, prescribed as Medicon and sold OTC as Medicon cough tablets. It is not controlled, so bringing your own Robitussin or Delsym is fine within the 2-month OTC limit. Many Japanese cold remedies pair it with dihydrocodeine, so read the label if you want to avoid opioids.
At a glance
- Prescription status
- Prescription and OTC
- Over the counter
- Designated Class 2
- Bringing it into Japan
- ✓ 1 month Rx / 2 months OTC
- Names abroad
- Robitussin DM · Benylin Dry Coughs
Over the counter
Sold OTC as Medicon cough tablets (Designated Class 2) and in many combination cold remedies.
Finding it in a Japanese drugstore
- Look for this on the package
- デキストロメトルファン（メジコン）
- Dextromethorphan hydrobromide
- Common product names
- メジコンせき止め錠Proコンタックせき止め
- Category printed on the package
- Designated Class 2
- Sold at any drugstore or pharmacy, and online. Ask staff if you are unsure; this category carries extra cautions.
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
6 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 | メジコン |
|---|---|
| Generic | 3 generic products |
| Dosage forms | Oral |
| Strengths (oral) | 15mg |
| Official price (per tablet or unit) | ¥6.3 – ¥24.1 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.
メジコン錠15mg
デキストロメトルファン臭化水素酸塩細粒10%
ツルハラ
デキストロメトルファン臭化水素酸塩錠15mg
3 manufacturers: NP · ツルハラ · トーワ
All listed products (6) · Drug price list as of 2026-08-12
| メジコン散10% | Oral · ¥24.1/g |
|---|---|
| メジコン錠15mg | Oral · ¥8.5/tablet |
| デキストロメトルファン臭化水素酸塩細粒10%「ツルハラ」 | Oral · ¥20.8/g |
| デキストロメトルファン臭化水素酸塩錠15mg「NP」 · Generic | Oral · ¥8.6/tablet |
| デキストロメトルファン臭化水素酸塩錠15mg「ツルハラ」 · Generic | Oral · ¥8.6/tablet |
| デキストロメトルファン臭化水素酸塩錠15mg「トーワ」 · Generic | Oral · ¥6.3/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 | Robitussin DM, Delsym, NyQuil |
|---|---|
| UK | Benylin Dry Coughs |
| Korea | 덱스트로메토르판 |
| China | 右美沙芬, 惠菲宁 |
| Taiwan | 右美沙芬 |
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.