Unless the IMP label explicitly states that the preparation is multi-dose, contains a preservative, and specifies conditions for reuse, treat every vial as single-use and discard any remaining solution after administration
Comparison of metformin and N-acetyl cysteine, as an adjuvant to clomiphene citrate, in clomiphene-resistant women with polycystic ovary syndrome
Every time a vial is accessed the septum punctured and a syringe withdrawn there is a small risk of contamination, and the solution is briefly exposed to air and light
Combined assessment of your genetic variants, biomarker profile, liver function, and clinical symptoms helps your provider determine whether supplementation addresses a real deficiency or dietary optimization would be more beneficial
PMID: 35460727 Int J Biol Sci 2022 Jan 1;18(2):717-730