Over the Counter Medicine in Japan: A Complete Guide for Foreigners

Finding the right medicine when you are sick in a foreign country can be stressful, especially when labels are written in a language you cannot read. Japan has an excellent network of over 22,000 drugstores and pharmacies nationwide, stocked with effective over-the-counter (OTC) remedies for nearly every common ailment. This guide walks you through everything you need to know about buying medicine in Japan as a foreigner, from understanding drugstore chains to choosing the right product for your symptoms.

If you are new to navigating the Japanese healthcare system, be sure to read our complete healthcare guide for foreigners for a broader overview of medical services available to you.

Where to Buy OTC Medicine in Japan

Japan offers two main types of stores where you can purchase over-the-counter medicine: pharmacies (yakkyoku) and drugstores. Understanding the difference will help you find what you need more quickly.

Pharmacies (Yakkyoku / 薬局) are staffed by licensed pharmacists who can dispense prescription medications. They often carry a full range of OTC products as well. If you need advice on drug interactions or have specific health concerns, a yakkyoku is your best bet.

Drugstores are larger retail outlets that sell OTC medicines alongside cosmetics, snacks, household goods, and supplements. Major chains include Matsumoto Kiyoshi, Welcia, Tsuruha Drug, Sundrug, and Daikoku Drug. Many locations are open late or even 24/7, making them convenient for emergencies.

Most drugstores have clearly labeled aisles with English translations underneath the Japanese descriptions. Staff may not speak fluent English, but pointing at symptoms on a translation app usually works well. For more tips on daily life in Japan, including shopping and communication, check out our dedicated guide.

Common OTC Medicines by Symptom

One important thing to know: OTC medicines in Japan tend to be milder than their Western equivalents. Dosages are often formulated for the average Japanese body weight, so you may find them slightly less potent than what you are used to back home. Always follow the dosage instructions on the packaging.

Pain Relief and Fever

Bufferin and Eve are the two most commonly purchased pain relievers among both locals and foreigners. Loxonin S is a stronger option available without prescription at pharmacies with a pharmacist on duty.

Cold and Flu Remedies

Japanese cold medicines are comprehensive, often combining multiple active ingredients in a single product. Popular options include:

• Pabron Ace Pro — A well-rounded cold remedy covering fever, cough, runny nose, and sore throat. This is one of the most popular cold medicines in Japan.
• Lulu Attack — Targets nasal congestion and throat pain specifically.
• Kakkonto (葛根湯) — A traditional Kampo herbal remedy used at the first sign of a cold. It contains kudzu root and is widely trusted for early-stage cold symptoms.
• Contac — Available in several formulations for different cold symptoms.

For sore throats specifically, Ryukakusan lozenges are a Japanese household staple that nearly every resident swears by.

Stomach and Digestive Issues

Digestive problems are common when adjusting to a new diet. These remedies can help:

• Gaster 10 — For acid reflux and upset stomach, containing famotidine.
• Biofermin — A popular probiotic that helps regulate gut bacteria. Excellent for ongoing digestive adjustment.
• Stoppa — Fast-acting anti-diarrhea tablets.
• Ohta's Isan — A classic Japanese digestive powder used for overeating, heartburn, and nausea.
• Taisho Kampo Ichoyaku — A natural remedy with licorice and fennel for stomach discomfort.

Allergies and Skin Issues

Japan's allergy season (particularly cedar pollen from February to April) affects millions of people. Useful OTC options include:

• Allegra FX — Non-drowsy antihistamine for hay fever.
• Alesion — Another popular antihistamine available OTC.
• Muhi — The go-to topical cream for insect bites and itching. Available in regular and extra-strength versions.
• Kayumidome — Cooling gel with a convenient roll-on applicator for bug bites.

For more on adapting to seasonal changes and daily life challenges in Japan, our lifestyle guides offer practical tips.

Understanding Japanese Medicine Categories

Japan classifies OTC medicines into three categories, which determines where and how they can be sold:

Category 1 medicines are kept behind the pharmacy counter and require a brief consultation with a pharmacist before purchase. This includes medicines like Loxonin S and Gaster 10. Category 2 and 3 medicines can be picked up directly from shelves.

Understanding this system helps explain why some medicines you are looking for might not be visible on the regular shelves. Simply ask the pharmacist at the counter, and they will assist you. You can learn more about Japan's healthcare infrastructure on Living in Nihon's health insurance guide.

Kampo: Traditional Japanese Herbal Medicine

One of the unique aspects of Japanese healthcare is the widespread availability of Kampo (漢方) medicine. Based on traditional Chinese medicine but adapted over centuries in Japan, Kampo remedies are prescribed by doctors and sold over the counter.

Popular Kampo products you will find in drugstores include:

• Kakkonto (葛根湯) — For early-stage colds and stiff shoulders
• Shakuyakukanzoto (芍薬甘草湯) — For muscle cramps and leg pain
• Goreisan (五苓散) — For hangovers and water retention
• Yokuininto (ヨクイニン湯) — For skin health and wart removal

Tsumura is the most recognized Kampo brand, with numbered formulations that make it easy to identify specific remedies. Many Japanese people use Kampo alongside Western medicine, and pharmacists can recommend appropriate options based on your symptoms.

For those interested in Japanese culture and traditions, Kampo represents a fascinating intersection of traditional knowledge and modern healthcare practice.

Medications Banned or Restricted in Japan

This is critical information for foreigners. Several common Western medications are illegal to bring into Japan, regardless of whether you have a valid prescription in your home country. Violating these rules can result in arrest and detention.

Strictly prohibited substances include:

• Medications containing amphetamines (Adderall, Dexedrine, Vyvanse)
• Pseudoephedrine-containing products (Sudafed, Actifed, NyQuil, Advil Cold & Sinus)
• Any product containing stimulant ingredients

Import limits for permitted medicines:

• OTC medicines: up to a 2-month supply
• Prescription medicines: up to a 1-month supply
• Beyond these limits, you need a Yunyu Kakunin-sho (import certificate) from the Ministry of Health

For the most current banned medication list, check the Accessible Japan guide or the U.S. Embassy advisory. The official Ministry of Health, Labour and Welfare page provides detailed import procedures.

If you are planning to work in the healthcare field in Japan, For Work in Japan's healthcare industry guide offers useful career information.

Useful Japanese Phrases at the Pharmacy

While many drugstore staff will do their best to help, knowing a few key phrases can make the process smoother:

Using a translation app like Google Translate with the camera feature can also help you read medicine packaging in real time. For more advice on navigating language barriers, see our guide to learning Japanese.

Tips for Buying Medicine as a Foreigner

Here are practical tips to make your pharmacy visits smoother:

1. Bring your current medications — Show the pharmacist what you normally take so they can suggest an equivalent Japanese product.
2. Know your allergies — Write down any drug allergies in Japanese before you visit.
3. Use the pharmacist — Category 1 medicine consultations are free and pharmacists are highly trained.
4. Check for tax-free shopping — Chains like Daikoku Drug and Matsumoto Kiyoshi offer tax-free purchases for tourists on eligible items.
5. Download a translation app — Google Translate's camera mode can read Japanese labels in real time.
6. Stock up on essentials early — Do not wait until you are sick. Buy basic cold medicine, pain relievers, and digestive aids when you first arrive.
7. Remember that Japanese pharmacies cannot fill foreign prescriptions — If you need ongoing prescription medication, visit a local clinic to get a Japanese prescription.

For more on settling into life in Japan and managing your cost of living, our comprehensive guides cover everything from groceries to healthcare expenses.

You can also explore career opportunities in Japan's growing pharmaceutical sector through resources like Ittenshoku, which connects foreign workers with employers across various industries.

Conclusion

Navigating over-the-counter medicine in Japan does not have to be intimidating. With well-stocked drugstores on nearly every major street, helpful pharmacists, and effective Japanese remedies, you can manage common health issues confidently. Remember to familiarize yourself with the banned medication list before arriving, stock up on basics early, and do not hesitate to ask pharmacists for help. Japan's pharmacy system, while different from what you may be used to, is remarkably efficient once you understand how it works.

For a complete overview of healthcare services available to foreigners, including insurance enrollment and finding English-speaking doctors, visit our healthcare guide for foreigners in Japan.