Yes, some medications can interfere with Vitamin B12 absorption
Melphalan transport, glutathione levels, and glutathione-S-transferase activity in [PMID: 3416297] Laboratory literature summary: Melphalan transport, glutathione levels, and glutathione-S-transferase activity in research subjects medulloblastoma

Sequence: Gly-His-Lys (complexed with Cu2+) Molecular Formula: C14H22CuN6O4 Molecular Weight: 401.91 g/mol CAS Number: 89030-95-5 PubChem CID: 73587 Synonyms: Copper Tripeptide-1, GHK Copper, Prezatide Copper, Glycyl-L-histidyl-L-lysine Copper Complex Purity: 99% (HPLC) Presentation: Vial, deionized water, spray bottle Shelf Life: 36 months from date of manufacture when stored properly Quality Verification: Third-party tested by certified laboratory Manufacturing Standard: USA-made, pharmaceutical-grade, GMP compliant Intended Application: In vitro research applications only At Limitless Biotech, we provide comprehensive Certificates of Analysis (COAs) for all of our research-only peptides to ensure transparency, purity, and quality in every batch
At Formation, Dr
There is also numbing fluid included in the liquid injected during the treatment