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Triptorelin is x a synthetic analogue of a natural hormone that consists of 10 amino acids. The decapeptide acts as gonadotropin-releasing hormone (GnRH) agonist. When initially introduced into the body, it signals various hormones such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) to be released. But as a second line, it’s been actually inhibiting that production of those hormones after the initial spike, leading to decreased sex hormone response.
In a clinical setting, it is applied for hormone-dependent disease such as prostate carcinoma, endometriosis, precocious puberty and uterine leiomyoma. It is also used in ART and hormone replacement therapy for transgender men. Triptorelin is administered by injection & it works really well controlling hormones. But long-term use can produce side effects including hot flashes, fatigue and loss of bone density. Its stability and high potency renders it a useful tool in hormone therapy.
Peptide Sequence (IUPAC Condensed): H-Pyr-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH2
Molecular Formula: C64H82N18O13
Molecular Weight: 1311.4 g/mol
Synonyms: LHRH, Tryptophyl(6)-, Triptorelin acetate
View the Triptorelin Certificate Of Analysis (COA)
View the Triptorelin High Performance Liquid Chromatography (HPLC)


Triptorelin is similar to a hormone that occurs naturally in the body, which affects the release of sex hormones such as estrogens and testosterone. Initially this results in increased LH and FSH production from the pituitary gland. This results in temporary elevation of sex hormones such as testosterone in men and estrogen in women. But if administered long-term, it desensitizes the pituitary gland’s GnRH receptors. This results in a fall of LH and FSH concentration, which reduces the synthesis of sex hormones by gonads.
Triptorelin, when administered continuously, desensitizes the pituitary GnRH receptors. This entails a vastly lowered production of LH and FSH. The production of sex hormones by the gonads is thus downregulated. This feature of Triptorelin makes it a good choice for the treatment hormone-sensitive cancers such as prostate cancer, certain types of breast cancer and also for the regulation of/remove testosterone levels in those who are transgenders.
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Advanced Prostate cancer:Study has revealed that Triptorelin is highly successful, then again employed to cope with advanced prostate type of cancer (PC), which inhibits testosterone construction - an important inducer concerning androgen-sensitive tumour. Triptorelin SR formulations achieved testosterone levels 98% of patients)and relieved pelvic pain, the 3 month regimen requiring fewer injections and less care burden.
Regarding uterine fibroids, preoperative triptorelin treatment has been reported to be associated with significant myoma shrinkage and better postoperative outcomes, by shortening the hysteroscopy time and lowering fluid absorption. Those findings reinforced the function of triptorelin in attenuating the symptoms and enhancing surgical proficiency in individuals with endometriosis and uterine fibroids.
Central Precocious Puberty (CPP)Triptorelin is highly effective in the treatment of Central Precocious Puberty (CPP) in children. One study has reported that luteinizing hormone (LH) suppression to prepubertal concentrations occurred in 93.5–100% of children with GnRH antagonist/3-month prolonged-release (PR) over the course of 12 months, resulting in stable sex steroid concentrations and a decrease in growth rate [58]. Bone age advancement decelerated, and physical development reached a plateau.
A third study using triptorelin in combination with cluster nursing showed better predicted adult height, fewer behavioural problems and improved quality of life versus standard care. Triptorelin was well tolerated and with less adverse reactions, and could be a safe drug for treatment of CPP in children.
Assisted Reproductive Technologies (ART): The impact of Triptorelin on ART has been demonstrated in a number of clinical studies. Triptorelin in the luteal phase Supplementary data associated with this article, can be found, in the online version at http:// dx.doi.org/10.1016/j.rbmo.2010.08.014 Studies confirm that triptorelin supplementation during the luteal phase increases pregnancy rate (PR), ongoing PR and implantation rates especially with longagonist protocols.
Triptorelin in low dose is also effective for final oocyte maturation obtaining similar outcomes than the conventional method without increasing risk of ovarian hyperstimulation syndrome (OHSS).
Moreover, novel delivery systems such as triptorelin-loaded microneedles increase the bioavailability and require less frequent administration, thereby significantly reducing the physical and emotional burden on women receiving ART [9]. These results demonstrate the successfulness and improvement to patient convenience of triptorelin in ART therapy.
Purchase Triptorelin Pre-Mixed Peptide from Peptide works. Now in 2mg carts, the pen kit has everything needed to use including a CNT cartridge pen, needle tips and a protective carry case.
Frequently asked questions for Triptorelin.
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What is Triptorelin Used For?
Triptorelin is commonly used in research to study hormonal regulation of first months or so before they would begin producing their own. It allows scientists to study hormone regulation in early puberty, prostate cancer and breast cancer. Triptorelin inhibits hormone signals, enabling researchers to investigate how various biological systems and health issues are affected by reduced hormonal activity.
Mechanism of action of Triptorelin in Breast Cancer
Triptorelin reduces the amount of some hormones in the body which help breast cancer to grow. It affects the signalling system in the brain to decrease production of estrogen from the ovaries. Less estrogen means hormone-sensitive cancer cells are given fewer growth signals. Triptorelin is also used in research to test the function of the hypothalamus and activity of the pituitary gland.
What are the Triptorelin Side Effects?
On the other hand, triptorelin can have transient effects while hormone levels are adjusting. Typical responses are mild headaches, mood changes, hot flashes or mild annoyance locally on injection. The effects become apparent early, as hormone signals plummet and the endocrine system adapts. These changes are studied by researchers in order to understand how hormone feedback control is involved in controlling growth and reproductive pathways.
Can You Legally Buy Triptorelin?
In the United States, Triptorelin is sold as a prescription medication under the brand name Trelstar. It cannot be dispensed or administered to people or animals without a prescription. Laboratory supplies of triptorelin are non FDA approved for therapeutic use; however, triptorelin can be used legally by researchers and institutions when made in a licensed laboratory for non_human research. Regulations differ by region so be sure to check local laws before purchase.

Is Triptorelin a T-Releasing Peptide?
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Is Triptorelin a Treatment for Endometriosis by Peptide?
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PT-141.
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