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Summary What is already known about this topic? Kratom (Mitragyna speciosa), a plant used for its psychoactive properties, is widely available in the United States. The recent shift from traditional leaf preparations to high-potency alkaloid extracts has raised safety concerns. What is added by this report? Analysis of 2015–2025 National Poison Data System data found an increase of ...
Background Strychnine is a strong poison. Only a small amount is needed to cause serious effects in people. Strychnine poisoning can cause extremely serious negative health effects, including death. Strychnine is a white, odorless, bitter crystalline powder. It can be taken by mouth, breathed in, or mixed in a solution and given intravenously (injected directly into a vein).
Ricin is a natural poison that can harm the body. Signs and symptoms of ricin poisoning depend on whether ricin was breathed in, swallowed, or injected. If you were exposed, get medical care.
Poisonous plants that can cause skin irritation include poison ivy, poison oak, and poison sumac. Burning poisonous plants may lead to lung irritation. Employers and workers can take actions to stay safe.