Gonadorelin (GnRH)


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Gonadorelin (GnRH) description 

Gonadotropin-releasing hormone (GnRH), also known as follicle-stimulating hormone–releasing hormone (FSH-RH), luteinizing hormone–releasing hormone (LHRH), gonadoliberin, and luliberin in its endogenous form and as gonadorelin (INN) in its pharmaceutical form, is a releasing hormone responsible for the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary. GnRH is a tropic peptide hormone synthesized and released from GnRH neurons within the hypothalamus. The peptide belongs to gonadotropin-releasing hormone family. It constitutes the initial step in the hypothalamic–pituitary–gonadal axis.

Gonadorelin significantly stimulate the production of testosterone

Gonadorelin is used in fertility medicine, to treat amenorrhea and hypogonadism and as a diagnostic agent to assess pituitary gland function, thanks to its strong ability to significantly stimulate the production of sex hormones. But continuous or prolonged administration of gonadorelin desensitizes the gonadotrophic cells, and promotes negative feedback effect, therefore, correct and professional dosing of Gonadorelin is very important. 

Gonadorelin Pharmacology

Gonadorelin is a GnRH receptor agonist and is used to induce gonadotropin secretion by follicle stimulating hormone and luteinizing hormone from the pituitary gland and to increase the production of sex hormones by the gonads. It has a distribution half-life of 2 to 10 minutes and a very short terminal half-life of 10 to 40 minutes. Gonadorelin is metabolized by hydrolysis to smaller peptide components.

Gonadorelin benefits, effects and possible medical use

    • Possible use as a treatment for hypothalamic amenorrhea, hypogonadotropic hypogonadism, delayed puberty, cryptorchidism, infertility and impotence
    • Professional pulsative treatment with Gonadorelin can solve problems with the hypothalamic-pituitary-gonadal axis and restart natural testosterone production
    • Gonadorelin support muscle growth and maintenance by stimulating testosterone production
    • Gonadorelin promotes neuroprotective effects

Gonadorelin possible side effects

    • Overdose or abuse of gonadorelin leads to decreased LH and FSH levels and hypogonadism
    • Hot flushes, sweating
    • Injection site irritation
    • Headache or nausea
    • Skin rash

Gonadorelin dosage

The dose of Gonadorelin (GnRH) for medical purposes in the treatment of gonadotropin deficiency and hypogonadotrophic hypogonadism is 100 mcg of Gonadorelin injected subcutaneously in a single dose.

Warning: Overdose, abuse or improper use of Gonadorelin leads to a decrease in the level of LH and FSH and subsequent hypogonadism – reduced functional activity of the gonads, which leads to a reduction in the production of estrogen and testosterone. Therefore, Gonadorelin in humans should only be administered by a healthcare provider and its response should be monitored for LH, basal LH or serum sex hormone levels as appropriate. 

Please, always keep in mind that our Gonadorelin as well as all other products are sold exclusively for research purposes only.


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