Frequently consumed as a tea, Chinese Herbs have been used for centuries and accounts for the majority of treatments in Traditional Chinese Medicine (TCM). Although many herbs can be distributed in their natural form, they can also be purchased in powder form, which is more consistent and easier for the patient to prepare. A TCM doctor in herbal medicine will prescribe and in many instances also prepare the herbs, much like old fashioned pharmacists use to prepare western medicine. Many western medicines either are currently based in compounds found in the plant world, or are now based on man made compounds based on the original plant. The TCM herbal medicine doctor will combine a variety of different herbs, based on the TCM prescription, into a single formula.