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GLP-1 injection belong to GLP-1 receptor agonists (GLP-1 RAs), a class of synthetic drugs with a structure similar to natural GLP-1, but modified to prolong half-life and reduce dosing frequency

Studies were excluded if they met at least one of the following exclusion criteria: (1) non-primary research (e.g., review articles, commentaries, letters to the editor, dissertations, protocols, published abstracts), (2) case reports or case series, (3) does not use a GLP-1 receptor agonist as an intervention, and (4) does not report on glutamatergic or NMDA/AMPA receptor activity

This timing aligns with natural BDNF rhythms and reduces the likelihood of sleep disruption from its alerting properties

Your prescriber will likely track HbA1c (if you're diabetic or prediabetic), liver enzymes (ALT, AST), and sometimes hs-CRP or ApoB (apolipoprotein B), which are more precise cardiovascular risk markers than LDL alone

Some individuals notice lower readings within 4-8 weeks of consistent therapy, while others require 3-6 months before changes become apparent

In terms of onset, the oral form may take slightly longer to produce noticeable effects because of its lower and more variable bioavailability