Anthem. nob. is the common chamomile used domestically in the form of a tea made of the flowers. It is not to be confounded with Matricaria chamomilla. Burnett has recorded a case in which violent gastric disturbance and headache were caused by the "tea"; and Berridge has proved the tincture. In Burnett's case there was great coldness and chilliness inside abdomen; Berridge had feelings of coldness generally, and sensitiveness to cold air and the touch of cold things but slight exertion caused heat and perspiration.