Is Sudafed Legal in Japan?
NCD permit required
Sudafed contains Pseudoephedrine and requires a Narcotics Control Department (NCD) import permit before travel to Japan. The permit application must be submitted at least 14 days before arrival, supported by a doctor's letter listing your diagnosis, dosage, and trip length. Sudafed cannot be brought into Japan with just a foreign prescription.
Japan status
Permit Required
Quantity threshold
Not applicable
Substance class
Stimulant Raw Material
Why is Sudafed controlled in Japan?
Pseudoephedrine is a Stimulant Raw Material under Japan's Stimulants Control Act because it can be used to manufacture methamphetamine. The 10% rule means most US single-ingredient pseudoephedrine tablets (30 mg, 60 mg, 120 mg) trigger the restriction.
How to apply for the NCD import permit
- 1Apply for the NCD import permit at least 14 days before your arrival date.
- 2Doctor's letter (dated within 3 months) must list: your full name, diagnosis, medical necessity, drug name, strength, daily dose, and the prescribing doctor's signature.
- 3Attach photos of original packaging showing drug name and strength.
- 4You must carry the import certificate with you and present it at customs — not in checked baggage.
Application form: Submit through the Japan Narcotics Control Department (NCD).
NCD import permit applicationLegal alternatives in Japan
Discuss these with your prescriber before travel. Switching medications mid-trip is not advisable.
Pabron Gold A (Japanese OTC)
Available at any Japanese pharmacy. Contains guaifenesin, dl-methylephedrine (low concentration), and chlorpheniramine.
Phenylephrine
Available in some US cold medicines (e.g., Sudafed PE) and not controlled in Japan, though the FDA has questioned its oral efficacy.
Saline nasal spray
Always allowed.
Frequently asked questions
Can I bring Sudafed to Japan?▼
Sudafed containing pseudoephedrine above 10% is restricted and requires an NCD import permit. Most travelers simply leave Sudafed at home and buy Pabron or a similar Japanese cold remedy at any pharmacy. Sudafed PE (phenylephrine, not pseudoephedrine) is not restricted.
What about combination cold medicines like NyQuil or Claritin-D?▼
If the pseudoephedrine concentration in the combination product exceeds 10%, the entire product is restricted. Claritin-D, Zyrtec-D, and Advil Cold & Sinus typically exceed the threshold. Travel without them and use Japanese alternatives.
Why is Sudafed restricted in Japan?▼
Pseudoephedrine is a precursor in the illicit manufacture of methamphetamine. Japan has some of the strictest precursor laws in the world.
Related medications
Pseudoephedrine is a Stimulant Raw Material under Japan's Stimulants Control Act because it can be used to manufacture methamphetamine. The 10% rule means most US single-ingredient pseudoephedrine tablets (30 mg, 60 mg, 120 mg) trigger the restriction.
Ephedrine is a precursor to methamphetamine and is tightly controlled under Japan's Stimulants Control Act. Some low-concentration topical products are allowed; oral and inhaled products usually exceed the threshold.
Norephedrine is a metabolite and precursor to amphetamine-class stimulants.
Check your full travel kit
Sudafed is just one medication — most travelers carry several. Our free checker reviews your entire prescription list against Japan’s import rules.
Check all my medicationsSource: MHLW Narcotics Control Department — Controlled Substances List (12 Dec 2024). Page last reviewed 2026-05-31 by Dr. Lo and Dr. Lee (PharmD). Regulations change — verify with the MHLW Narcotics Control Department before travel. This page is for informational purposes and is not a substitute for advice from your prescribing physician or from a Japanese customs authority.