Active substance

Doxycycline (Doxycycline Monohydrate)

3 products from 2 companies contain this in Canada.

3 prescription onlycapsule (immediate- and delayed-release)capsule (immediate- and extended-release

Prescription only

Same substance is not the same product. Strength, form, release mechanism and other ingredients all differ. Whether one can replace another is a decision for a pharmacist.