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Adv Enzymol Relat Areas Mol Biol 73:209267 Groneberg DA, Rubio-Aliaga I, Nickolaus M, Doring F, Fischer A, Daniel H (2004) Direct visualization of peptide uptake activity in the central nervous system of the rat

Additional serious complications include colonic perforation (a tear in the intestinal wall that can lead to peritonitis and sepsis), severe infections from non-sterile equipment or contaminated solutions, and rectal burns from improperly cooled coffee

Because BPC-157 is not FDA-approved, it's often sold as a research chemical and not all vendors maintain pharmaceutical-grade quality

Inhibition of inhibition in visual cortex: the logic of connections between molecularly distinct interneurons