Active substance

Nitrous Oxide + Oxygen

2 products from 2 companies contain this in Canada.

2 prescription onlygas

Prescription only

ALNOX GAS50 % + 50 %gas Air Liquide Canada Inc. · Nitrous Oxide + Oxygen · N01AX63 LIQUI-MED ANALGESIC GAS50 % + 50 %gas Praxair Canada Inc · Nitrous Oxide + Oxygen · N01AX63

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.