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Peptide encyclopedia/ Ziconotide
Illustration for Ziconotide

THE PEPSRADAR ENCYCLOPEDIA

Ziconotide

Specialist intrathecal pain treatment

Prescription medicines · Sources checked 2026-10-04

Read the studies ↓Explore the molecule ↗

Ziconotide AT A GLANCE

The question behind the molecule.

Read findings and limitations ↓
1 selected publicationContext mattersThe study was short and examined a specialized delivery route in a severely affected population. It cannot establish long-term benefit-risk or a general injury-recovery use.

What is Ziconotide?

Ziconotide is a venom-derived peptide medicine that blocks N-type calcium channels. Its pain research concerns specialist intrathecal delivery, not a generic injectable recovery peptide.

Biological role or research focus

Specialist intrathecal pain treatment.

The study was short and examined a specialized delivery route in a severely affected population. It cannot establish long-term benefit-risk or a general injury-recovery use.

Role reference: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Names you may encounter

Prialt

Search terms can include brands, combinations, or historical names. They are not automatic product equivalents.

Class / identity
Venom-derived N-type calcium-channel blocker peptide
Research focus
Specialist intrathecal pain treatment
Featured evidence
Human randomized trial
Source check
October 4, 2026

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Molecular structure

Ziconotide: 2d molecular structure. The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.⤢ Enlarge 2D
2D molecular structureThe cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.PubChem · CID 16135415 ↗

How Ziconotide works

Blocking N-type calcium channels modifies pain-signal transmission. The route is part of the intervention: delivery into spinal fluid is different from a skin or muscle injection.

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Medicine status & clinical context

EMA describes Prialt as an authorized medicine for severe chronic pain requiring intrathecal analgesia. This is a specialist pain-treatment context; an authorization for a particular medicine is not approval of a supplier’s preparation.

The selected trial studied refractory pain in patients with cancer or AIDS. EMA’s Prialt information provides the product context; specialist administration and product-specific precautions matter.

Source: EMA · Prialt authorization and product overview ↗

Source: EMA · Prialt overview ↗

What does the evidence show?

Selected published evidence, with the population, findings, and limits kept together. These original summaries draw on publication abstracts; they are not a systematic review.

Human randomized trial · 2004

Ziconotide refractory-pain randomized trial

Did intrathecal ziconotide reduce refractory pain versus placebo?

Population / model
111 patients with refractory pain due to cancer or AIDS, studied at 32 centers.
Study design
Randomized double-blind placebo-controlled intrathecal study with a short titration period and a five-day maintenance phase.
Main finding
Mean visual-analog pain-intensity improvement was 53.1% with ziconotide versus 18.1% with placebo.
Limits & context
The study was short and examined a specialized delivery route in a severely affected population. It cannot establish long-term benefit-risk or a general injury-recovery use.

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Read the original paper for methods, adverse events, funding, and conflicts of interest. Publisher access may require a subscription.

Further reading · 4 additional publication links

Exact-name PubMed search checked 2026-10-04. These records have not been appraised. A name match can include related compounds, combinations, or other formulations; it does not establish safety or benefit.

The Diagnosis and Treatment of Neuropathic Pain. ↗
Deutsches Arzteblatt international · 2024 Dec 13 · Journal Article, Review
Read available full text ↗

Ziconotide. ↗
· 2006 · Review

The Physiology, Pathology, and Pharmacology of Voltage-Gated Calcium Channels and Their Future Therapeutic Potential. ↗
Pharmacological reviews · 2015 Oct · Journal Article, Research Support, Non-U.S. Gov't, Review
Read available full text ↗

Ziconotide. ↗
· 2025 Jan · Study Guide

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Safety & precautions

What the featured evidence can tell us

The complete product information is needed for neurological and other precautions. Intrathecal medicine requires specialist selection, delivery, and monitoring; the trial is not an instruction for self-administration.

Source: EMA · Prialt overview ↗

Identity, route, and evidence limits

The study was short and examined a specialized delivery route in a severely affected population. It cannot establish long-term benefit-risk or a general injury-recovery use.

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Official product context · checked October 4, 2026

EMA describes confusion, memory impairment, dizziness, and other neurological effects among reported adverse reactions. Specialist delivery and the full product precautions are essential to interpreting its benefits.

Source: EMA · Prialt authorization and product overview ↗

This is not a complete list of contraindications, interactions, or adverse effects. Medicine labels apply to specific products and indications; research-use listings are not interchangeable with approved medicines.

What are people discussing?

No editorial transcript note has been reviewed for this profile yet. Below are the matching video records available for exploration; title and caption matches are not verified claims.

Watch the source discussions

0 matching video records · 0 with captions indexed.

Across the full library, 30 caption files are indexed from 20,199 inventoried videos. Most transcripts remain unreviewed. Select a thumbnail or timestamp to watch inside PepsRadar. Thumbnail images load from YouTube.

No matching video has been identified in the current snapshot.

Sources & supplier listings

Listings are grouped by the vendor’s stated identity. Blends and modified derivatives are labeled separately. Inclusion is not a quality assessment or an endorsement.

No verified matching catalog listing yet

We have not added a supplier for this profile. Missing products and coded listings are not filled with guesses.

Catalog checked 2026-10-04. Seller listings retain their stated intended use. Shops covered: BioLongevity Labs, BioLongevity Supplements, American Peptides, PSPeptides. This is not a market-wide comparison. Affiliate participation does not determine evidence or editorial coverage.

Questions worth asking

  • Does this establish a general-purpose pain peptide?
  • What population, comparator, and route were actually studied?
  • The study was short and examined a specialized delivery route in a severely affected population. It cannot establish long-term benefit-risk or a general injury-recovery use.
  • What adverse effects, uncertainty, and conflicts of interest does the original source report?

Frequently asked questions

Does this establish a general-purpose pain peptide?

No. The trial concerns a particular medicine, intrathecal route, and refractory-pain population. Those findings cannot be transferred to an unrelated preparation or route.

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Does this page establish a supplier’s product quality?

No. A publication describes its own tested material. It does not verify a supplier listing, batch identity, purity, or clinical suitability.

Source: Intrathecal ziconotide in the treatment of refractory pain in patients with cancer or AIDS: a randomized controlled trial. · 2004 ↗

Does the official medicine reference cover every use discussed online?

No. The reference covers defined products and clinical settings. Research outside those uses needs separate evidence and does not extend the medicine’s authorization.

Source: EMA · Prialt authorization and product overview ↗

References & editorial record

Source notes checked 2026-10-04. Original PepsRadar summaries. Not reviewed by a medical professional. Topic grouping is editorial navigation, not a treatment recommendation. Video notes specify which excerpts were reviewed; no full transcripts are published.

For research and education only. This page does not provide medical advice, diagnosis, or treatment. Research-only listings are not instructions for human use.

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MOLECULAR ATLAS

Ziconotide

Download illustration ↓Source record ↗
Ziconotide 2d molecular structure

The cited molecular record is shown. Salts, protonation, and formulation ingredients may differ from a specific product.