Can I bring Benadryl into Japan? (2026)

Yes - bring it with your prescription.

Benadryl contains Diphenhydramine. Carry it in original packaging with your prescription or a doctor's letter.

• Carry Benadryl in its original packaging with the prescription or a doctor letter.
• Bring only a personal supply (usually up to ~30-90 days).

Source: Japan MHLW — medication import