Active substance
Phenylalanine
2 products from 2 companies contain this in United States.
2 without prescriptionLiquid
Available without a prescription
Phenylalanine 15329X/29.5mLWithout prescription Professional Complementary Health Formulas · PhenylalaninePhenylalanine Phenolic6X/mLWithout prescription Energique, Inc. · Phenylalanine
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.