バルトレックス顆粒50%
Valacyclovir (Valtrex)
Valaciclovir hydrochloride · バルトレックス
Valacyclovir (Valtrex) is widely prescribed in Japan for cold sores, genital herpes and shingles, in 500 mg tablets with many generics. Dermatology clinics are the usual place to get it, often the same day, and 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
- Valtrex
Over the counter
Tablets are prescription-only. OTC acyclovir cream (Activir) is sold for recurrent cold sores, but only to people previously diagnosed by a doctor.
Prescription products in Japan
23 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 | バルトレックス |
|---|---|
| Generic | 16 generic products |
| Dosage forms | Oral |
| Strengths (oral) | 500mg |
| Official price (per tablet or unit) | ¥64.4 – ¥164.6 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.
バルトレックス錠500 500mg
バラシクロビル顆粒50%
トーワ
バラシクロビル錠500mg
19 manufacturers: DSEP · EE · FFP · JG · NIG · NPI …
バラシクロビル粒状錠500mg
モチダ
All listed products (23) · Drug price list as of 2026-08-12
| バルトレックス錠500 500mg | Oral · ¥112.1/tablet |
|---|---|
| バルトレックス顆粒50% | Oral · ¥141.3/g |
| バラシクロビル粒状錠500mg「モチダ」 · Generic | Oral · ¥101.5/packet |
| バラシクロビル錠500mg「DSEP」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「EE」 | Oral · ¥112.1/tablet |
| バラシクロビル錠500mg「FFP」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「JG」 · Generic | Oral · ¥103.3/tablet |
| バラシクロビル錠500mg「NIG」 | Oral · ¥112.1/tablet |
| バラシクロビル錠500mg「NPI」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「NP」 · Generic | Oral · ¥103.3/tablet |
| バラシクロビル錠500mg「SPKK」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「TCK」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「YD」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「イワキ」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「ケミファ」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「サトウ」 · Generic | Oral · ¥103.3/tablet |
| バラシクロビル錠500mg「サワイ」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル錠500mg「ツルハラ」 · Generic | Oral · ¥89.5/tablet |
| バラシクロビル錠500mg「トーワ」 | Oral · ¥112.1/tablet |
| バラシクロビル錠500mg「三和」 · Generic | Oral · ¥103.3/tablet |
| バラシクロビル錠500mg「日本臓器」 | Oral · ¥112.1/tablet |
| バラシクロビル錠500mg「杏林」 · Generic | Oral · ¥64.4/tablet |
| バラシクロビル顆粒50%「トーワ」 | Oral · ¥164.6/g |
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 | Valtrex |
|---|---|
| UK | Valtrex |
| Korea | 발트렉스 |
| China | 维德思 |
| Taiwan | 祛疹易 |
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.