Triptorelin Acetate(Trelstar)/

Biologieal

Triptorelin is a synthetic analogue of gonadorelin (natural GnRH decapeptide). with amino acid (D-tryptophan) substitution in position 6 to inhibit rapid degradation for long activity.Triptorelin is a gonadotropin-releasing hormone agonist (GnRH agonist). By causing constant stimulation of the pituitary, it decreases pituitary secretion of gonadotropins luteinizing hormone (LH) and follicle stimulating hormone (FSH). [1]

Reference

[1] http://en.wikipedia.org/wiki/Triptorelin