No Gracie, Mullein isn't poisonious. My grandmother made cough medicin for years from it and my mother and I still make it today. It is very good for asthma. You strain it to get the tiny hairs out of the tea before adding the other ingredients or it probably would choke you. Debbie From what I read, the leaves on Mullein are very poisonious so I would go to a health store to get that. Also you have to make sure that you get all the little fuzz filtered out. Let me know if it works. I have a friend that has had asthma all his life. Gracie --------------------------------- Blab-away for as little as 1¢/min. Make PC-to-Phone Calls using Yahoo! Messenger with Voice.