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This makes for a more consistent and reproducible research protocol, which is the bedrock of good science

So the practical takeaway is not oral is better or SC is better. It is: pick one route, follow the documented per-dose figure for the vial you have, and keep the route constant so that whatever you observe is not confounded by a mid-stream route change

Henk Kerkhoff: Nothing to disclose

A small human study on chronic pain patients showed significant reductions in pain levels for 6 out of 7 subjects after DSIP treatment

Even small impurities can introduce variability into test results, compromise reproducibility, or interfere with biological activity