Testing Potential Synergistic Effects of Albuterol and Caffeine on Metabolic Rate

The study consists of 2 screening visits and 8 study visits. Screening visit 1: about 1 hour
fasting from 9pm the prior night. Height and weight is measured, vital signs taken and
questionnaires completed. Women will have a urine pregnancy test. Blood draw for chemistry
panel and blood count.

Screening visit 2: about 1 hour, Medical history, physical examination, and
electrocardiogram (a heart tracing).

Visit 1-8 about 4 hours each. 8 separate occasions, with about 7 days between each visit. ON
each visit, blood pressure, pulse and temperature is recorded. A resting metabolic rate
(RMR) is measured. After a baseline measurement of about 30 minutes of breathing is taken ,
a pill will be swallow and metabolism(measured by breathing with a clear plastic hood over
the upper body to measure metabolic rate ( the oxygen inhaled and the carbon dioxide
exhaled).

Inclusion Criteria:

- Healthy male or female between the ages of 18 to 50 years, inclusive.

- Have a body mass index between 19 and 40 kg/M2 ( a number calculated from your height
and weight), inclusive.

Exclusion Criteria:

- Female who is pregnant or nursing.

- Woman of childbearing potential and do not agree to use an effective method of
contraception during the trial. Acceptable methods include abstinence, barrier
methods, intrauterine devices, and hormonal methods of contraception.

- A smoker or use nicotine.

- Take regular medication other than birth control pills.

- Use medications known to alter metabolic rate (some asthma medications).