Yes, its an essential trace element
Diabetes Therapy 10:649662 Overgaard RV, Navarria A, Ingwersen SH, Bkdal TA, Kildemoes RJ (2021) Clinical pharmacokinetics of oral semaglutide: analyses of data from clinical pharmacology trials
Conclusions and future directions In conclusion, we report that anticoagulant, sample processing, and sample storage methods significantly affect levels of GSH within plasma samples and that these methodological differences impact post-processing summary reporting
Alendronate itself is not a metal ion, so a direct glutathione-alendronate chelation reaction is not the concern
BDNF gene expression changes persist 24-48 hours after a single intranasal dose, indicating that Semax triggers sustained transcriptional programs that outlast the peptide's physical presence in tissue (PMID: 14556513)