Confronto
Octreotide vs. Oxytocin
Due peptidi a confronto — identità, base di evidenze, stato legale ed eventi avversi noti.
Identità
Categoria
Ricerca (altro)
Ricerca (altro)
N. CAS
83150-76-9
50-56-6
Peso molecolare
1019.24 g/mol
1007.19 g/mol
Emivita
1.7 h
0.05 h
Sequenza
D-Phe-Cys-Phe-D-Trp-Lys-Thr-Cys-Thr(ol)Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2Meccanismo d'azione
Octreotide
Octreotide is a cyclic octapeptide that selectively binds somatostatin-receptor subtypes SSTR2 and SSTR5. Via G-protein-coupled signalling, adenylyl cyclase is inhibited, reducing the secretion of multiple hormones (growth hormone, IGF-1, glucagon, insulin, VIP, serotonin). Structural stabilisation via a disulfide bridge and D-amino acids extends the half-life relative to natural somatostatin (minutes to several hours).
Oxytocin
Oxytocin is synthesised in the hypothalamus and released via the posterior pituitary. Peripherally it binds the oxytocin receptor, a G-protein-coupled receptor, and through the phospholipase-C cascade and calcium release triggers contraction of uterine smooth muscle and milk ejection — the pharmacological basis of the obstetric approval. Centrally, oxytocin acts as a neuromodulator and has been linked to social bonding, trust and modulation of stress and anxiety circuits. Its central effects in humans are mechanistically incompletely understood, particularly because it is unclear to what extent peripherally or intranasally administered oxytocin crosses the blood-brain barrier.
Base di evidenze
Evidenza più alta
RCT sull'uomo
RCT sull'uomo
Studi
5
4
di cui sull'uomo
4
4
Effetti registrati
3
3
Contraddizioni aperte
1
1
Eventi avversi documentati
2
0
Stato legale
Voci complete
Frequently asked questions
- What is the difference between Octreotide and Oxytocin?
- Octreotide is classified as "Ricerca (altro)", while Oxytocin is classified as "Ricerca (altro)". Octreotide: Synthetic octapeptide somatostatin analog with a longer half-life than endogenous somatostatin. FDA- and EMA-approved since the 1980s for acromegaly and neuroendocrine tumours. Oxytocin: Oxytocin is an endogenous nonapeptide hormone of the posterior pituitary. In synthetic form (Pitocin, Syntocinon) it has been approved for decades to induce and augment labour and to control postpartum uterine bleeding. Strictly separate from this is intranasal use to influence social behaviour, trust, anxiety or autism symptoms: this use is unapproved, purely experimental, and yields inconsistent and often negative results in controlled trials. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Octreotide or Oxytocin?
- The highest available evidence level is "RCT sull'uomo" for Octreotide and "RCT sull'uomo" for Oxytocin. 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 Octreotide and Oxytocin in Germany and the United States?
- Germania: Octreotide — Su prescrizione, Oxytocin — Su prescrizione. Stati Uniti: Octreotide — Su prescrizione, Oxytocin — Su prescrizione. These are factual summaries with source and review date on the individual pages.