Can you bring medicine into Japan?
Yes, you can bring many common medicines into Japan for personal use, but the rules depend on the type of medicine, the ingredients, and the amount you carry.
You can usually bring up to a two month supply of approved over the counter medicines, including standard ibuprofen, standard Tylenol, paracetamol, melatonin, and basic allergy tablets.
However, cold and sinus medicines are where travellers often get caught out.
Products such as NyQuil, Advil Cold & Sinus, Tylenol Cold, Sudafed, and Actifed may contain ingredients that are banned or restricted in Japan, including stimulants or pseudoephedrine.
Before you pack anything, check the active ingredients and confirm the latest rules with official Japanese authorities.
Learn what’s allowed, what needs approval, and how to avoid issues at customs before your trip.
Japan has some strict rules about what you can bring in, and that might change what you pack.
Before you pack any medicine, check the active ingredients and confirm the latest rules with official Japanese authorities.
Over-the-Counter Medication
Which Non-Prescription Medicines Are Not Allowed?
Some non-prescription medicines that are easy to buy in the UK, US, or Europe aren’t allowed in Japan.
Products with certain stimulant or narcotic ingredients are a no-go, even if they’re legal at home.
Examples of banned products include:
- NyQuil
- Actifed
- Sudafed
- Advil Cold & Sinus
- Dristan Sinus
- Tylenol Cold
- Vicks Inhaler
- Lomotil
This is where brand names can get confusing.
Standard Tylenol is generally treated differently from Tylenol Cold because cold and sinus products may contain ingredients that are banned or restricted in Japan.
The same applies to standard ibuprofen and Advil Cold & Sinus.
One may be fine for personal use, while the other may not be allowed because of the extra cold medicine ingredients.
Do not judge the medicine by the brand name alone.
Check the exact product name and the active ingredients before you pack it.
Japan’s rules change sometimes, so double-check with government sources before you fly.
Which Over-the-Counter Medicines Are Acceptable?
You’re allowed up to a 60-day supply of approved over-the-counter medicine and pills for personal use.
Common over the counter medicines travellers often ask about include standard ibuprofen, such as Advil or Motrin, and standard acetaminophen or paracetamol, such as regular Tylenol.
Melatonin and basic antihistamines, such as Claritin or Zyrtec, may also be allowed for personal use, as long as the product does not contain banned or restricted ingredients.
The important word is standard. Regular Tylenol is not the same as Tylenol Cold.
Standard ibuprofen is not the same as Advil Cold & Sinus.
Always check the active ingredients before you travel.
If the product contains pseudoephedrine, stimulants, narcotic ingredients, or controlled substances, do not assume it is allowed just because it is sold over the counter in your home country.
This also covers vitamins and contact lenses.
If you need more than 60 days’ worth:
- You’ll need to apply for a “Yunyu Kakunin-sho” (import certificate) before you arrive.
Tip: Always carry medicines in their original packaging and, if possible, keep an ingredients list handy.
Prescription Medication
Bringing Prescription Medicines: What Is Allowed?
You can bring prescription medicines into Japan if they’re for your own use, aren’t on Japan’s banned or controlled lists, and don’t go over a one-month supply.
Always check if your medication is allowed in Japan before you travel.
Contact your doctor if you’re unsure, and look up the latest controlled substances list from Japanese authorities.
- Only for personal use
- One-month supply max
- Must not be banned or tightly regulated
Medicines You Cannot Bring into Japan
Some prescription medicines are totally banned in Japan, no matter your reason.
Stimulants like amphetamines or drugs for ADHD (Adderall, Dexedrine) aren’t allowed.
Narcotics, such as heroin, opium, and some cannabis medicines, including painkillers, are prohibited.
There are no exceptions, even if you have a doctor’s note.
Outright Prohibited Examples
| Drug Type | Example Medicines |
|---|---|
| Stimulants | Adderall, Dexedrine |
| Narcotics | Heroin, opium, morphine (without approval) |
| Cannabis-based | Some CBD oil, medical cannabis |
- Carry your prescription with your medication
- Keep medicines in their original, clearly labelled pharmacy containers
- Don’t mix pills in unmarked bottles or combine different meds in one container
These steps help customs officials understand your situation and prevent confusion.
It’s smart to have your documents in English or Japanese.
Do You Need to Apply for a Yunyu Kakunin-sho?
Quick Guide: Medication Quantities Allowed into Japan
If you’re travelling to Japan with medicine or medical devices, you’ll want to know if you need a Yunyu Kakunin-sho (import certificate).
The Narcotics Control Department needs this under the Pharmaceutical Affairs Law and Customs Law.
Apply for a Yunyu Kakunin-sho if you are:
- Bringing more than a 1-month supply of prescription meds
- Carrying over a 2-month supply of non-prescription meds or vitamins
- Travelling with more than 24 pieces per item of over-the-counter treatments (for external use)
- Bringing more than one medical device, like inhalers or syringes
You need to get this certificate before you arrive and show it at customs if asked.
The process can take up to 3 weeks, so plan ahead.
- Overseas prescriptions aren’t valid in Japan. If you need more medicine than allowed, you’ll have to see a doctor in Japan.
- Talk to your healthcare provider at home if these limits might affect your treatment.
| Type of Item | Maximum Quantity (Without Certificate) |
|---|---|
| Prescription medicines | 1 month supply or less |
| Non-prescription medicines | 2 month supply or less |
| Vitamins | 2 month supply or less |
| Cosmetics/OTC treatments (external use) | 24 pieces or less per item |
| Medical devices (e.g. inhalers) | 1 per person |
Seriously, sort this out before you go to avoid a mess at customs.
Medicine You Can Find Locally
Buying Non-Prescription Medicine in Japan
It’s pretty easy to pick up non-prescription medicine for minor health issues like colds or allergies in Japanese cities.
Pharmacies offer products for everyday issues.
The brands and ingredients may differ from what you expect.
Pharmacists are trained to help, so ask if you need something specific.
In bigger cities, some staff speak basic English, but bringing a photo or written note of your medicine can really help.
Popular Pharmacy Chains in Japan
Drug stores are everywhere in Japan, with some big chains operating nationwide or regionally:
| Pharmacy Name | Main Locations |
|---|---|
| Welcia | Kanto, Kansai |
| Matsumoto Kiyoshi | Countrywide, mainly Kanto |
| Tsuruha Drug | Countrywide |
| Daikoku Drug | Countrywide, Osaka area |
| Sun Drug | Countrywide |
You’ll find a mix of health products, toiletries, and daily essentials at these shops.
Getting Prescription Medicine in Japan
If you need prescription meds, you’ll have to visit a doctor or clinic in Japan.
Embassy websites often list English-speaking clinics and doctors.
Before your trip, it’s smart to contact an English-speaking healthcare provider.
Discuss your needs, especially if your medicine is rare or restricted in Japan.
FAQs About Bringing Medicine into Japan
Yes, standard ibuprofen is generally allowed in Japan for personal use, as long as you stay within the permitted quantity and the product does not contain banned or restricted ingredients.
You can usually bring up to a two month supply of approved over the counter medicine. Keep it in the original packaging and check the active ingredients before you travel.
Yes, standard Tylenol is generally allowed in Japan for personal use. Tylenol is also known as acetaminophen or paracetamol.
However, Tylenol Cold is different. Cold and sinus versions may contain ingredients that are banned or restricted in Japan, so check the active ingredients carefully before packing it.
No. NyQuil is commonly listed as a product travellers should not bring into Japan because it may contain ingredients that are banned or restricted.
Do not pack NyQuil for Japan. Choose a safer alternative after checking the active ingredients, or buy suitable medicine from a pharmacy in Japan if needed.
Melatonin may be allowed for personal use, but you should keep it in its original packaging and stay within the permitted quantity.
If you need to bring a large amount, check the latest official guidance before you travel.
Some cold and sinus medicines contain stimulants, pseudoephedrine, or other ingredients that are restricted or prohibited in Japan.
That is why regular pain relief medicine may be allowed, while cold and sinus versions from the same brand may not be allowed.
Official Links & Resources
Useful websites:
