Hexarelin side effects and risks

A peptide that releases growth hormone; repeated use can weaken the response.

Also called: Examorelin, HEX, EP-23905, MF-6003.

Growth hormone secretagogues (ghrelin receptor) · Ghrelin receptor agonist and growth hormone secretagogue.

Reported side effects

  • Cortisol and prolactin increases: In acute IV tests, prolactin rose up to about 180% and cortisol about 40%; these are changes, not incidence rates., moderate (source)
  • Weaker GH response with repeated use: GH AUC fell from 19.1 to 10.5 mcg/L·hour by week 16; recovered after four weeks off., mild (source)
  • Reduced deep sleep: Observed in a seven person nighttime experiment; event rate not reported., moderate (source)
  • Blood pressure changes: unknown, moderate (source)
  • Swelling, joint discomfort or glucose changes: unknown, moderate (source)
  • Immune reaction or injection infection: unknown, serious (source)

Stop and get help if

  • Trouble breathing, tongue swelling, fainting or widespread hives: Stop and get emergency care now.
  • Sudden severe headache, new vision loss or repeated vomiting: Get emergency assessment now; a pituitary or pressure problem must be excluded.
  • Chest pain, severe breathlessness or collapse: Call emergency services now.
  • Persistent severe abdominal pain or repeated vomiting: Stop and get urgent medical assessment.
  • Confusion, seizure, or low blood sugar that does not resolve: Get emergency help now; do not drive.
  • Fever with a hot, spreading, painful injection site: Get urgent care for a possible injection infection.

Who should avoid it

  • pregnant: Avoid during pregnancy. Reproductive safety is unstudied; this screen is precautionary.
  • breastfeeding: Avoid while breastfeeding. Human infant exposure and safety are unknown.
  • tryingToConceive: Avoid while trying to conceive. Human fertility and early-pregnancy safety are unknown.
  • under18: Historical child studies do not support unsupervised use in minors.
  • activeCancer: GH and IGF-1 are growth signals. Avoid with active cancer; this applies GH-treatment precautions to secretagogues.
  • cancerHistory: Prior cancer needs a clinician review before raising GH or IGF-1. Recurrence risk with this compound is unknown.
  • diabetes: GH-related changes can worsen insulin sensitivity. Review blood sugar control and medicines.
  • heartCondition: Fluid retention may strain the heart. Heart-disease safety is not established for home-use schedules.
  • uncontrolledBloodPressure: Review uncontrolled blood pressure before use. Fluid retention and pressure changes need assessment.
  • kidneyDisease: Kidney-disease dose adjustments and repeated-dose safety are not established.
  • liverDisease: Liver-disease dose adjustments and repeated-dose safety are not established.
  • diabeticRetinopathy: Review proliferative eye disease before raising GH or IGF-1. This is a GH-class precaution.
  • pancreatitisHistory: Review prior pancreatitis. GH-class safety concerns do not establish a risk rate for this compound.
  • sleepApnea: Review sleep apnea and new swelling. GH-related tissue or fluid changes are a class concern.
  • surgeryPlanned: Tell the surgical team about use and all stacks. Perioperative safety depends on the specific study setting.
  • testedAthlete: WADA bans this compound at all times, including out of competition.
  • other: Do not add a GH secretagogue when GH or IGF-1 is already excessive. Investigate the cause.
  • other: A pituitary mass needs specialist review. GH testing and GH-raising drugs are not interchangeable.

Interactions

  • Insulin and sulfonylureas: GH-class precaution: insulin sensitivity and medicine needs can change. Exact interaction trials for this peptide are lacking.
  • Other GH secretagogues, GH, and IGF-1: Overlapping GH/IGF-1 effects can add hormone, swelling and blood sugar risks. Combination benefit is not established.
  • Glucocorticoids and oral estrogen: These can change GH responses or IGF-1 interpretation. Do not change prescribed hormone replacement to alter a peptide response.
  • Anticoagulants and antiplatelets: General injection precaution: blood thinners increase bleeding/bruising risk. A direct interaction with this peptide has not been established.

Product quality risks

  • Unregulated products may have the wrong identity, dose or sterility. A purity percentage alone cannot establish injection safety.
  • Related GHRPs had altered identities in seized products. No hexarelin-specific market survey was found.
  • No representative market-wide contamination or underdosing rate was found for this compound.

Related to Hexarelin

Sources

Sources checked: 2026-10-18.

Information only, not medical advice. Peptifacts does not sell anything and does not link to sellers.