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Contact your GP immediately, call NHS 111, or attend A&E if you develop: Irregular heartbeat or palpitations that persist Chest pain or pressure Severe breathlessness Significant leg swelling These symptoms require assessment to determine their cause, which may or may not be related to your B12 treatment
It strengthens the connections between cells (tight junctions), directly addressing intestinal permeability ("leaky gut")
This helps make sure your treatment is working well
For people who want a broader view of peptide options, the peptide therapy page shows how Livv groups peptides by goals
It has the longest safety record and the most supporting evidence
However, markedly elevated levels without supplementation may warrant GP review to exclude underlying conditions such as haematological disorders, liver disease, or renal impairment
