Know the medicine · Myth and fact
A result can feel like a ready answer. Before tying it to a treatment, ask what the test was meant to find and what else the assessment needs.
The myth to test
Letting a single hormone reading choose the treatment.
A gland in the brain, the pituitary, makes growth hormone: a chemical message.
The US medicines agency (FDA) says its level changes during the day. A blood sample taken at a random time cannot by itself show that the body makes too little.
FDA describes looking at symptoms and usually using at least two stimulation tests, which prompt the body to release growth hormone.
Another test measures a blood substance called IGF-1. FDA discusses this test when explaining how to find a growth hormone shortage. That test cannot settle the question by itself.
Ask the clinician what each blood test measures, how it helps explain your symptoms and what its result would change. That does not mean ordering tests from a list.
As of October 1, 2026, FDA described established tests and approved treatments for growth hormone shortage.
Ipamorelin itself still has no US approval as of October 1, 2026.
Ask what condition is being considered, then ask why a particular approach is being discussed for it.