Active substance

Calc Phos, Ferr Phos, Kali Phos, Mag Phos, Nat Phos

5 products from 3 companies contain this in United States.

5 without prescriptionTablet, SolubleLiquidGlobule

Available without a prescription

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.