Patient description: The patient is a 34-year-old obese woman who comes to the clinic with weight concerns. She is 165 cm tall, and her weight is 113 kg (BMI: 41.5). In the past, she unsuccessfully used antiobesity agents and appetite suppressants. She is complaining of sleep apnea, PCO and dissatisfaction with her body shape. She is a high-school teacher. She is married for 5 years. She doesn't use any contraceptive methods for the past 4 months and she had no prior pregnancies. She rarely exercises and movement seems to be hard for her. She is not able to complete the four-square step test in less than 15 seconds. She does not smoke or use any drugs. Her BP: 130/80, HR: 195/min and her BMI is: 41.54. Her lab results: FBS: 98 mg/dl TG: 150 mg/dl Cholesterol: 180 mg/dl LDL: 90 mg/dl HDL: 35 mg/dl She is considering a laparoscopic gastric bypass.

Clinical trial eligibility criteria: eligible ages (years): 18.0-999.0,  To Determine the Bioavailability of Tranylcypromine Subjects will be normal, healthy adult men and women who volunteer to participate Is the individual healthy, nonsmoking, normal adult man or woman who volunteers to participate? Is s/he at least 18 years of age? Is his/her BMI between 19 and 30, exclusive? Is she willing to avoid pregnancy by abstaining from sexual intercourse, or by the use of barrier methods. (diaphragm, condom, foams/jellies, sponge), and IUD, or has she has been surgically sterile or post menopausal at least six months prior to entering into the study? Is s/he considered reliable and capable of understanding his/her responsibility and role in the study? Has/s/he provided written informed consent? A no answer to any of the above questions indicates taht the individual is ineligible for enrollment  Does the individual have a history of allergy or hypersensitivity to tranylcypromine? Does/ s/he have clinically significant laboratory abnormalities that would interface with the conduct or interpretation of the study or jeopardize his/her safety? Does s/he have significant history or clinical evidence of auto-immune, cardiovascular, gastrointestinal, hematopoietic, hepatic, neurological, ongoing infection, pancreatic, or renal diseases that would interface with the conduct or interpretation of the study or jeopardize his/her safety? Is she nursing? Does s/he have serious psychological illness? Does s/he have significant history ( within the past year) or clinical evidence of alcohol or drug abuse? Does s/he have a positive urine drug screen or saliva alcohol screen, or a positive HIV-1 , or hepatitis B or C screen, or a positive pregnancy test?-Is s/he unable to refrain from the use of alcohol or xanthine-containing foods or beverages during periods beginning 48 hours prior to study drug administration and ending when the alst blood sample has been taken? Is s/he unable to refrain from the ingestion of smoked meat, cheese (except cream cheese and cottage cheese), wine and beer during periods beginning 48 hours prior to study initiation and ending seven days after the last blood sample has been taken in study period two? Has s/he used any prescription drug during the 14-day period prior to study initiation, or any OTC drug during the 72-hour period preceding study initiation? Is s/he unable to refrain from the use of all concomitant medications during the study?