Japanese pharmacies do not accept foreign prescriptions. You will need to prepare a prescription issued from a Japanese doctor.
Many foreign brands of medications are not available in Japan. Instead, you doctor will try to prescribe a different brand that has a similar or the same effect as your foreign medication.
Some medications can not be prescribed at all due to differences in drug regulations.
JHI can help you find a doctor in Japan who can prescribe the medicine you need.
It is recommended to bring your foreign prescription, a letter from your doctor or your actual medication when visiting a Japanese doctor.