Prescribable drug ingredients

The RxTerms prescribable INGREDIENT list (salts stripped — e.g. "Penicillin G"). Returns {rxcui, name}. The rxcui feeds check_drug_interactions.

How to use

For branded/strength drug products use lookup_rxterms or rxnorm_get_drugs instead.

Parameters

Name	Type		Description
query	string	required	Ingredient name or RXCUI.
limit	number	optional	Max results (default 20).

Example input

{
  "query": "aspirin",
  "limit": 1
}

Example output

{
  "total": 1,
  "ingredients": [
    {
      "rxcui": "1191",
      "name": "aspirin"
    }
  ]
}

Call it (MCP tools/call)

{
  "method": "tools/call",
  "params": {
    "name": "lookup_drug_ingredient",
    "arguments": {
      "query": "aspirin",
      "limit": 1
    }
  }
}

Endpoint: POST https://clinical-mcp.mcharge.in/mcp (Streamable HTTP).