A COMPARATIVE STUDY OF PARACETAMOL CONCENTRATIONS IN COMMERCIAL MEDICATIONS AGAINST LABEL CLAIMS AND INDONESIAN PHARMACOPOEIA LIMITS USING A UV-VIS SPECTROPHOTOMETER: STUDI KOMPARATIF KADAR PARASETAMOL OBAT KOMERSIAL TERHADAP LABEL DAN BATASAN FARMAKOPE INDONESIA MENGGUNAKAN SPEKTROFOTOMETER UV-VIS. fj. 2026;6(02):578-584. doi:10.51771/fj.v6i02.2208