Nomination Date: 10/01/1997
Rationale: The nomination of comfrey and symphytine by the NIEHS for testing is based on the potential for chronic human exposure and the limited amount of carcinogenicity data.
Agents and Status
The following information relates to the specific agent and may include history from earlier or later nominations for this same agent.
Agent Name: Comfrey
Agent Name: Comfrey + Symphytine mixture
Agent Name: Symphytine