PeptideCheck, by The Peptide Doctrine
PeptideCheck is this site's app for AI assistants such as ChatGPT. It calculates concentration, dose volume, U-100 syringe marks and water volume from quantities you supply, and it quotes US FDA status, prescription availability, studied uses and typical costs from peptidedoctrine.com's reviewed datasets, with a citation to the source page on every answer. Unknown compounds and missing prices are identified honestly instead of guessed.
Educational information, not medical advice. For prescribed medication, the pharmacy label overrides every calculation. PeptideCheck does not select doses, design protocols or recommend peptide vendors, and compounded drugs are not FDA-approved.
Use it
In ChatGPT, add it as a connector: MCP URL https://mcp.peptidedoctrine.com/mcp, Streamable HTTP transport, no authentication. Then ask something like "I have a 5 mg vial and 2 ml of bacteriostatic water; how many units is 250 mcg?" The same endpoint works in any MCP-capable assistant.
Support and contact
PeptideCheck support covers calculator behavior, citations, input validation and service availability: email editors@peptidedoctrine.com with the tool name and a reproducible example. Do not send diagnoses, health records or any personal medical details; for medication instructions, contact your dispensing pharmacy or prescriber. We answer every message.
Data
The app stores nothing you type. Details are in the privacy policy and terms of use, which cover both this site and the app.