Each subject will be given tafamidis after either a high fat meal or while fasted. After swallowing tafamidis, tafamidis blood concentrations will be measured periodically for one week. After about 14 days, subjects will take either a different dose of tafamidis or the same dose under the opposite meal condition. Tafamidis concentrations from the three different conditions will be compared to determine if they are approximately the same.

Inclusion Criteria: - Healthy males or females of non-child bearing potential. - Body Mass Index (BMI) of 17.5 to 30.5 and total body weight more than 50 kg (110 lbs).

Exclusion Criteria: - Blood pressure at screening visit of greater than 140 mm Hg (systolic) or 90 mg Hg (diastolic). - Use of prescription or nonprescription drugs supplements within 7 days prior to 7 days of the study.