Study Evaluating Premarin and Bazedoxifene Potential Interaction

Inclusion Criteria: * For inclusion into the study, women must be healthy and postmenopausal (either naturally or surgically) between the ages of 35 and 70, inclusive. * Blood hormone levels must be consistent with a postmenopausal state (for specified subjects). * They can either be a non-smoker or smoke less than 10 cigarettes per day, and be able to abstain from smoking during clinic confinements Exclusion Criteria: * A subject will be excluded from participation if they : * Have participated in a clinical drug study within 30 days prior to study medication administration; * Have a history of drug or alcohol abuse within 1 year or consume more than 2 standard units per day of alcohol (a standard unit equals 12 ounces of beer, 1 ½ ounces of 80-proof alcohol or 6 ounces of wine); * Donate any other plasma or blood during the total study.