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DSIP

Also called Delta sleep-inducing peptide

Intravenous (into a vein)Human study reference

Research reference

Human study

DSIP six-volunteer sleep experiment

Slow morning IV infusion of 25 nmol/kg

Immediate observation over 130 minutes and subsequent night sleep

Schneider-Helmert et al. (1981) ↗

When results may show

When change was measured
This tiny early study measured sleep behavior, not a repeated nightly under-the-skin insomnia course.
When to assess
Immediate observation over 130 minutes and subsequent night sleep
Conditions and limitations
Six healthy volunteers in a double-blind crossover experiment. Weight-based IV exposure cannot define fixed-mcg home injections or a durable sleep result; no maintenance protocol is established.
When to stop
The measured study window is not a validated personal quit rule. Do not increase or prolong exposure because an expected result is absent; severe or persistent reactions need prompt clinical review.

Research timing is descriptive, not a promise or personal instruction. A severe or persistent reaction needs prompt clinical review. This is not medical advice.

Modelled level — every day

1× is the peak after a single dose.

Steady-state peak
1.00× single dose

Read off the modelled curve, not an even-interval formula

Time to steady state
2hours

About five half-lives

Administrations
7/ week

Where these numbers come from

  • Schneider-Helmert et al. (1981)Weight-based IV exposure cannot define fixed-mcg home injections or a durable sleep result; no maintenance protocol is established.

Next steps