Active substance

Permethrin

4 products from 3 companies contain this in Canada.

4 without prescriptioncreamlotionliquid

Available without a prescription

KWELLADA-P CRÈME RINSE1 %Without prescriptionliquid Medtech Products Inc · Permethrin · P03AC04 KWELLADA-P LOTION5 %Without prescriptionlotion Medtech Products Inc · Permethrin · P03AC04 NIX CREME RINSE1 %Without prescriptioncream Insight Pharmaceuticals, Llc · Permethrin · P03AC04 NIX DERMAL CREAM5 %Without prescriptioncream Haleon Canada Ulc · Permethrin · P03AC04

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.