How to Use Macimorelin
Complete guide to Macimorelin dosing, administration, timing, and protocol recommendations.
Quick Overview
Macimorelin (brand name Macrilen) is an orally active ghrelin receptor agonist used as a diagnostic test, not a treatment. You drink a single dose, then doctors measure how much growth hormone the pituitary releases to diagnose adult growth hormone deficiency. It was FDA approved in December 2017 as the first oral diagnostic agent for that condition.
Dosing Guidelines
Common Dose
Limited community data available
Frequency
See research protocols
Dose Range
See research dosing
Note: Limited anecdotal data. Refer to research dosing section.
Administration Method
Oral solution, fasting
Best Time to Take
Morning or as directed
Timing may vary based on individual response and goals. Consistency is generally more important than specific timing.
Protocol Duration
Single diagnostic test
Possible Side Effects
Not everyone experiences these. Individual responses vary.
- •Taste changes (dysgeusia)
- •Dizziness
- •Headache
- •Nausea
- •QT prolongation
Frequently Asked Questions
What is the recommended dose for Macimorelin?
Limited community data available
How do you administer Macimorelin?
Oral solution, fasting
When is the best time to take Macimorelin?
Morning or as directed
How long should you use Macimorelin?
Single diagnostic test
This information is for educational purposes only. Always consult with a healthcare professional before using any peptide. Dosing information is based on research literature and community reports, not medical advice.