Pharmacokinetic differences between subcutaneous injection and intradermal microneedle delivery of protein therapeutics ScienceDirect BPC 157 antagonized the general anaesthetic potency of thiopental and reduced prolongation of anaesthesia induced by l NAME thiopental combination Inflammopharmacology Springer Nature Link Frontiers Pharmacokinetics, distribution, metabolism, and excretion of body protective compound 157, a potential drug for treating various wounds, in rats and dogs BPC 157 clears your system in under 2 hours. That's why it needs daily dosing. TB 500's plasma half life is only about 2 hours, but it enters your cells and binds to actin monomers