Most common used herbal formulas in traditional Chinese medicine includes both classical formulas often used by Chinese medicine practitioners and prescriptions in clinic recognized by Pharmacopeia of the People's Republic of China. Formulas are classified according to the fundamental theory of traditional Chinese medicine, formulas' actions and diagnostic syndromes. Products listed in this category is also called as Chinese patent medicine. Chinese patent medicine are herbal medicines in Traditional Chinese medicine, modernized into a ready-to-use form such as tablets, oral solutions or dry suspensions, as opposed to herbs that require cooking (hot water extraction).