Active substance

Formaldehyde

2 products from 2 companies contain this in United States.

2 without prescriptionLiquidPellet

Available without a prescription

Formaldehyde 155412X/29.5mLWithout prescriptionLiquid Professional Complementary Health Formulas · Formaldehyde Formalinum30CWithout prescriptionPellet Boiron · Formaldehyde

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.