Сравнение

Cetrorelix vs. Semax

Два пептида рядом — идентичность, доказательная база, правовой статус и известные нежелательные явления.

Идентичность

Категория

Исследования (прочее)

Номер CAS

120287-85-6

80714-61-0

Молекулярная масса

1431.06 g/mol

813.92 g/mol

Период полувыведения

нет данных

0.3 h

Последовательность

нет данных

Met-Glu-His-Phe-Pro-Gly-Pro

Механизм действия

Cetrorelix

Cetrorelix competitively and immediately blocks the pituitary GnRH receptor, rapidly suppressing LH and FSH release — without the initial hormone surge ('flare') of GnRH agonists.

Semax

Semax is a tetracosactide fragment analog without hormonal activity at MC2R. Proposed mechanisms include elevation of BDNF and NGF in hippocampus and striatum (in animal models), modulation of dopamine metabolism, and neuroprotective effects via anti-apoptotic pathways. A clear primary receptor is not established.

Доказательная база

Наивысшая доказательность

РКИ на людях

Исследование на людях

Исследования

из них на людях

Зафиксированные эффекты

Открытые противоречия

Задокументированные нежелательные явления

Правовой статус

Country	Cetrorelix	Semax
Германия	Рецептурный	Не одобрено
RU	—	Рецептурный
США	Рецептурный	Не одобрено

Полные записи

Frequently asked questions

What is the difference between Cetrorelix and Semax?: Cetrorelix is classified as "Исследования (прочее)", while Semax is classified as "Исследования (прочее)". Cetrorelix: Cetrorelix is a synthetic decapeptide and GnRH antagonist. It is used in assisted reproduction (IVF) to prevent a premature LH surge during controlled ovarian stimulation. Semax: Synthetic heptapeptide derived from the N-terminal fragment of adrenocorticotropic hormone (ACTH 4-10). Approved in Russia for ischaemic stroke, cognitive function and ADHD in children. Western phase-3 trials absent. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
Which peptide is better supported by science, Cetrorelix or Semax?: The highest available evidence level is "РКИ на людях" for Cetrorelix and "Исследование на людях" for Semax. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
What is the legal status of Cetrorelix and Semax in Germany and the United States?: Германия: Cetrorelix — Рецептурный, Semax — Не одобрено. США: Cetrorelix — Рецептурный, Semax — Не одобрено. These are factual summaries with source and review date on the individual pages.

Country

Cetrorelix

Semax

Германия

Рецептурный

Не одобрено

—

Рецептурный

США

Рецептурный

Не одобрено

Frequently asked questions

What is the difference between Cetrorelix and Semax?

Cetrorelix is classified as "Исследования (прочее)", while Semax is classified as "Исследования (прочее)". Cetrorelix: Cetrorelix is a synthetic decapeptide and GnRH antagonist. It is used in assisted reproduction (IVF) to prevent a premature LH surge during controlled ovarian stimulation. Semax: Synthetic heptapeptide derived from the N-terminal fragment of adrenocorticotropic hormone (ACTH 4-10). Approved in Russia for ischaemic stroke, cognitive function and ADHD in children. Western phase-3 trials absent. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.

Which peptide is better supported by science, Cetrorelix or Semax?

The highest available evidence level is "РКИ на людях" for Cetrorelix and "Исследование на людях" for Semax. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.

What is the legal status of Cetrorelix and Semax in Germany and the United States?

Германия: Cetrorelix — Рецептурный, Semax — Не одобрено. США: Cetrorelix — Рецептурный, Semax — Не одобрено. These are factual summaries with source and review date on the individual pages.