L-692,429 vs Macimorelin

Head-to-head comparison of L-692,429 (L-692,429) and Macimorelin (Macimorelin acetate (AEZS-130)) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyL-692,429Macimorelin
CategoryGrowth HormoneGrowth Hormone
Full NameL-692,429Macimorelin acetate (AEZS-130)
Molecular WeightN/AN/A
Half-Lifeunknown / study-dependentabout 4-6 hours
Amino AcidsN/AN/A
Typical Dose0.03-0.1 mg/kg0.5 mg/kg single oral dose
RouteOralOral
Purity≥98%≥98%
Studies Count30120
Research StatusPre-clinicalClinical

L-692,429 Benefits

  • potent GHSR agonism
  • oral bioactivity in models
  • validates ghrelin pathway
  • useful research probe

Macimorelin Benefits

  • diagnostic GH stimulation
  • single oral dose
  • rapid measurable GH response
  • high clinical utility

L-692,429 Dosing

0.03-0.1 mg/kg in early studies|single oral or short-course research dosing|serial GH sampling recommended

Macimorelin Dosing

0.5 mg/kg orally as a single dose|fasted testing conditions|serial GH sampling after administration

L-692,429 Side Effects

  • increased appetite
  • glucose intolerance
  • transient prolactin changes

Macimorelin Side Effects

  • dysgeusia or taste disturbance
  • nausea
  • headache

Research Overview

L-692,429

L-692,429 was important in early GH secretagogue research because it showed that nonpeptide molecules could trigger robust GH release. It remains a classic tool compound for studying receptor-mediated GH pulsatility and appetite signaling.

Macimorelin

Macimorelin has been validated in clinical testing as an oral alternative to injectable GH stimulation tests. Its short-term use makes it a useful translational tool for evaluating pituitary GH reserve.

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Common Stacking Partners

L-692,429 stacks with:

Receptor assaysEndocrine studies

Macimorelin stacks with:

Pituitary testingEndocrine workup
tool-compoundgh-secretagogueghrelin-pathwaydiagnosticghrelin-mimeticgh-stimulation-test