Chewing Tobacco How toxic is it? Usually Non Toxic Mildly Toxic Highly Toxic Chewing tobacco and pouches can be very dangerous to children. They contain large amounts of nicotine which can cause seizures, respiratory arrest, and death. Contact the Washington Poison Center if ingested. Call 1 (800)-222-1222 Chat with a Poison Specialist Common brands & formats Skoal Zyn Grizzly Copenhagen Rogue On! Pouches Loose chewing tobacco What to do Swallowed Symptoms Nausea and vomiting are common. Seizures, respiratory depression, and death have occurred. What to do Keep the patient upright. Contact the Poison Center immediately to assess.