Fentanyl 3-day tape 4.2mg “Teikoku,” produced by Teikoku Pharmaceutical, is an external medicine containing fentanyl for severe, persistent pain. This 4.2mg x 1 patch has YJ code 8219700S6073 and is intended for a 3-day application period.
Fentanyl 3-day tape 4.2mg “Teikoku”
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