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BPC-157 opposes ethanol anesthesia and sedation in mice

A preclinical pilot study in human patients with chronic pain episodes found, that DSIP significantly reduced pain perception, also improved mood by reduction of depressive states, and that it may potentially be of interest for research into physiological addiction on pain medications, as it was observed to reduce withdrawal symptoms that occurs after discontinuation of long-term analgesic treatment

For context on where injectable treatments like Botox sit relative to PDRN on the same clinical evidence spectrum, the guide to how Botox works covers the neuromuscular mechanism and evidence tier