title: Risk of breast cancer in relation to the use of rauwolfia alkaloids.
abstract: In a case-control study of 1881 women with breast cancer and 1523 controls with benign conditions, 65 cases (3.5%) and 64 controls (4.2%) reported having used a drug that contained rauwolfia, giving a rate ratio estimate of 0.8 (95% confidence interval, 0.5-1.1). Use that ended more than a year previously was negatively associated with breast cancer (rate ratio, 0.5; 95% confidence interval, 0.2-0.9). The risk of breast cancer did not vary significantly according to duration of use. Nor did it vary within strata of varying base-line risk, such as age at first pregnancy. The data suggest that rauwolfia alkaloids do not increase the risk of breast cancer.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001943:Breast Neoplasms / Q000139:chemically induced* / Q000453:epidemiology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D008875:Middle Aged; D012306:Risk; D046948:Secologanin Tryptamine Alkaloids / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D046948:Secologanin Tryptamine Alkaloids