(10) W Larbig, W D Gerber, M Kluck, and G A Schoenenberger (1984) Therapeutic effects of delta-sleep-inducing peptide (DSIP) in patients with chronic, pronounced pain episodes
Chen, M., Tan, A
Most people feel the effects for about one week
Persistent symptoms that last more than a month, progressively worsen, or are accompanied by other red flags (fever, voice changes, difficulty breathing or swallowing, unexplained weight loss, or lump in the neck) should prompt urgent evaluation
Unlike larger therapeutic proteins, peptides are smaller and often break down faster in the digestive system, which is why many are administered through Peptide injections