Degradation mechanism and stability of 5??aminolevulinic acid

…, H Schmid, G Burmeister, HP Merkle…

Index: Bunke; Zerbe; Schmid; Burmeister; Merkle; Gander Journal of Pharmaceutical Sciences, 2000 , vol. 89, # 10 p. 1335 - 1341

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Citation Number: 80

Abstract

Abstract The physiological substance and precursor of the heme synthesis 5-aminolevulinic acid (ALA) is a promising prodrug for photodiagnosis and photodynamic therapy of epithelial tumors, particularly in urological and gynecological tissues. For the clinical use of this substance, a chemically stable and sterile drug formulation is required. In the present study, degradation mechanism of ALA in aqueous solution and possibilities to improve its ...