チラーヂンS散0.01%
Levothyroxine (Synthroid)
Levothyroxine sodium · チラーヂンS
Levothyroxine is sold in Japan as Thyradin S in 12.5, 25, 50, 75, and 100 mcg tablets. Doses match international practice, so continuing treatment is straightforward at any internal medicine or endocrinology clinic. It is not a controlled substance.
At a glance
- Prescription status
- Prescription only
- Over the counter
- Not sold OTC
- Bringing it into Japan
- ✓ 1 month Rx / 2 months OTC
- Names abroad
- Synthroid · Levothyroxine
Over the counter
Prescription only.
Prescription products in Japan
13 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 | チラーヂンS |
|---|---|
| Generic | 7 generic products |
| Dosage forms | Oral |
| Official price (per tablet or unit) | ¥10.8 – ¥59.1 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.
チラーヂンS錠25μg
チラーヂンS錠50μg
レボチロキシンナトリウム錠 12.5μg
レボチロキシンナトリウム錠 75μg
レボチロキシンナトリウム錠 100μg
チラーヂンS錠12.5μg
レボチロキシンNa錠25μg
サンド
レボチロキシンナトリウム25μg錠
レボチロキシンNa錠50μg
サンド
レボチロキシンナトリウム50μg錠
チラーヂンS錠75μg
チラーヂンS錠100μg
All listed products (13) · Drug price list as of 2026-08-12
| チラーヂンS散0.01% | Oral · ¥59.1/g |
|---|---|
| チラーヂンS錠25μg | Oral · ¥10.8/tablet |
| チラーヂンS錠50μg | Oral · ¥10.8/tablet |
| チラーヂンS錠100μg · Generic | Oral · ¥11.6/tablet |
| チラーヂンS錠12.5μg · Generic | Oral · ¥10.8/tablet |
| チラーヂンS錠75μg · Generic | Oral · ¥10.8/tablet |
| レボチロキシンNa錠25μg「サンド」 · Generic | Oral · ¥10.8/tablet |
| レボチロキシンNa錠50μg「サンド」 · Generic | Oral · ¥10.8/tablet |
| レボチロキシンナトリウム25μg錠 · Generic | Oral · ¥10.8/tablet |
| レボチロキシンナトリウム50μg錠 · Generic | Oral · ¥10.8/tablet |
| レボチロキシンナトリウム錠 100μg | Oral · ¥11.6/tablet |
| レボチロキシンナトリウム錠 12.5μg | Oral · ¥10.8/tablet |
| レボチロキシンナトリウム錠 75μg | Oral · ¥10.8/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 | Synthroid, Levoxyl |
|---|---|
| UK | Levothyroxine, Eltroxin |
| Korea | 씬지로이드 |
| China | 优甲乐 |
| Taiwan | 昂特欣 |
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.