Over the past several years, there has been a considerable rise in the availability of herbal products and other natural supplements, which are subject to limited FDA regulation. 1 Over 500 herbs are marketed in the US as bulk plants or a portion of plants, as well as teas, powders, liquids, extracts, tablets, and capsules. In addition, multi-ingredient products are proliferating and are easily available in supermarkets, grocery stores, drugstores, health food stores, and through the Internet. 2 Mass media marketing efforts by herbal companies, including television features and large-scale advertisements have increased consumer access to information about the availability of these products. Thus, it is not surprising that many herbal products have made their way into patients' selfprescribed therapy, often resulting in harm to the patient.Researchers have extensively examined the trend of herbal use among the general population of the US. Reports on rates of herbal use range from 1.8% to 77%, depending upon the focus of the study (herbal use 3-9 vs complementary and alternative medicine use 10-14 ), recall time frame (past month, 12 months, or ever), and the population under study (health maintenance organization, 6 specific disease condition, 7 general population 8,10,12 ). The results of these studies indicate 2 important aspects of herbal use. First, many patients use herbal products in conjunction with prescription medication because they believe that herbal products are "natural" and safe. 3-5 Second, there is little communication between patients and healthcare professionals about patients' herbal product use. Studies suggest that over 70% of people using these agents Background: Several studies have reported lack of patient-physician communication regarding herbal use. However, reasons for this lack of communication are not well understood.Objective: To determine, explore, and identify reasons for lack of patient-physician communication about herbal use.Methods: Using a cross-sectional design, a systematic sample of 1,000 adult Ohio residents was surveyed through a 29 item questionnaire. Survey items were adapted from earlier instruments evaluating complementary and alternative use. Descriptive and univariate statistics were run using SPSS version 10.0.Results: Of 210 usable responses, almost half (47.6%) of the participants reported that they were either currently using herbal products or had used them in the past, with 1 in 16 using herbal products daily. Fortyeight percent of these respondents indicated that they had never had a discussion with their physician about using herbal medicines. A similar percentage (45%) of individuals using herbal agents had not told their physicians about any of the products they used. The top 3 reasons for informing physicians of herbal use were that the physician needs to be aware of all of the products used, the physician may know whether herbals work, and the physician understands the interactions of herbals with prescribed drugs. The main reason that patients did not ...