Drug Interactions Drug interactions show low risk with most medications but notable considerations include: Zinc supplements: Compete with copper absorption, may affect copper metabolism and GHK-Cu efficacy Birth control pills: Can affect copper metabolism and levels Certain antibiotics: Some may affect copper absorption/utilization Copper-chelating medications: Directly antagonistic to GHK-Cu, should not be used concurrently Copper Overload Realistic Assessment Theoretical concerns about copper toxicity contrast sharply with actual risk at recommended doses
Managing expectations is important with any peptide protocol
1 General side-effects of hydroxo-B12 listed in the British National Formulary (BNF) are diarrhoea, dizziness, headache, hot flushes, nausea, skin reactions and urine discolouration
the mechanistic rationale (BPC-157 favouring fibroblast and NO-mediated repair, T4 favouring actin dynamics, cell migration and angiogenesis) is entirely extrapolated from separate animal experiments
It should also be noted that there is no report of B12 toxicity