Pharmacies, Prescriptions and Medication Notebooks

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Health & Medical Care / H001-06

Pharmacies, prescriptions and medication notebooks

When you receive medicine from a hospital, check the prescription deadline, how to choose a pharmacy and interactions between medicines. In Japan, hospitals and pharmacies are often separate.

Last updated: October 9, 2026

Illustration of a pharmacy and medication notebook

Decision flow when unsure

You received a prescription from a hospital
↓
Is the prescription still within its valid period?
↓
Yes
Take it to a pharmacy that accepts prescriptions and consult a pharmacist
No
Do not use it on your own; contact the prescribing facility
Prescriptions are generally valid for four days including the issue date. Ask the medical facility or pharmacy about exceptions and extensions.

Three things to remember

Prescription

Check the issue date and validity period

Pharmacy

Collect medicines and receive instructions

Medication notebook

Helps check interactions and duplicate prescriptions

Check these first

Prescriptions generally expire after four daysWithin four days including issue date; weekends and holidays count too.
You can choose your own pharmacyAny pharmacy handling prescriptions can provide medicines, not only those near the hospital.
Show your medication notebookIt helps identify duplicate medicines and potential interactions.
Ask a pharmacist when unsureYou can ask about doses, side effects and medicines during pregnancy or breastfeeding.

1. How to collect prescribed medicine

1

Receive a prescription
Paper or electronic prescription.

2

Find a pharmacy
Check hours, language support and electronic-prescription compatibility.

3

Reception
Provide the prescription, insurance information and medication notebook.

4

Listen to the explanation
Confirm how to take the medicine, how often and precautions.

2. Prescription validity period

Both paper and electronic prescriptions are generally validfor four days including the issue date. Weekends and public holidays count.

An expired prescription cannot simply be used at a pharmacy.
Contact the prescribing medical facility again. For special circumstances such as travel, speak with the doctor when receiving the prescription.

3. Choosing a pharmacy

Important clarification:Prescriptions generally remain valid for four days including the issue date, counting weekends and holidays. However, in special circumstances such as long travel, a doctor or dentist may write a different validity period on the prescription. Consult before it is issued and never change the date yourself.

What to check Key points
Business hours Can you visit within the prescription validity period?
Language support Can you receive explanations in your preferred language?
Electronic prescriptions If needed, does the pharmacy support them?
Stock Some unusual medicines may not be stocked
Regular pharmacy Using the same pharmacy helps consolidate medication history

4. What is a medication notebook and why use it?

A medication notebookrecords the names, doses, instructions and prescribing/dispensing history of medicines you use. Showing it to doctors or pharmacists helps them share information across facilities. You can also record allergies and previous side effects.

For first-time users

Ask a pharmacy for a paper medication notebook. Smartphone-based electronic versions also exist. Show the same notebook at medical visits and pharmacies. If you visit several facilities, try to keep everything in one notebook or app. Tell pharmacists about over-the-counter medicines and supplements too.

Reference:Ministry of Health: electronic medication notebook。

Prevent duplicate medicinesCheck that the same active ingredient is not prescribed twice.
Check interactionsReview interactions among prescription medicines, over-the-counter drugs and supplements.
Useful in emergenciesKnowing your usual medicines can help treatment decisions.
Electronic versions are availableSome services let you track medicines on a smartphone.

5. What foreign residents should tell the pharmacist

AllergiesAny previous rash, breathing difficulty or reaction to medicine.
Pregnancy and breastfeedingPregnant, possibly pregnant or breastfeeding.
Other medicinesIncluding drugs brought from your home country, over-the-counter medicines and supplements.
LanguageIf the explanation is unclear, ask before leaving.

6. Read next

Notes by residence and work situation

Technical interns / specified skilled workersIf you do not understand medication instructions, your support contact may help with interpretation. Always confirm how to take medicine with the pharmacist.
International studentsAsk the school health office or international student support desk about pharmacies offering language support.
Employees and self-employed peopleDo not hesitate to ask the pharmacist questions and show your medication notebook and current medicine information.

Check official sources

Follow your doctor’s and pharmacist’s instructions for specific doses and side effects.

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