Active substance
Estradiol/Norethindrone Acetate Transdermal System
2 products from 1 companies contain this in United States.
2 prescription onlyPatch, Extended Release
Prescription only
Combipatch (estradiol/Norethindrone Acetate Transdermal System).05 mg/d + .14 mg/dPrescription only Noven Therapeutics, LLC · Estradiol/Norethindrone Acetate Transdermal SystemCombipatch (estradiol/Norethindrone Acetate Transdermal System).05 mg/d + .25 mg/dPrescription only Noven Therapeutics, LLC · Estradiol/Norethindrone Acetate Transdermal System
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.