Patient description: The patient is a 57-year-old man with abdominal pain and vomiting. The pain started gradually about 20 hours ago in the epigastric and periumbilical regions, radiating to his back. He drinks around 60 units of alcohol per week and smokes 22 cigarettes per day. He is healthy with no history of allergies or using any medications. His family history is positive for type 2 diabetes (his father and sister). He lives alone and has no children. The abdomen is tender and soft. His bowel sounds are normal. His heart rate is 115/min and blood pressure 110/75 mmHg. The lab results are remarkable for leukocytosis (19.5), urea of 8.5, high CRP (145), high amylase (1200) and Glc level of 15. Cross-sectional imaging was negative for obstructive pancreatitis.

Clinical trial eligibility criteria: eligible ages (years): 18.0-999.0,  Healthy Subjects who were informed of the nature of the study and agreed to read, review, and sign the informed consent document prior to Period I dosing. 2. Subjects who completed the screening process within 21 days prior to Period I dosing. 3. Subjects who were healthy adult men and women at least 18 years of age at the time of dosing. 4. Subjects who weighed at least 60 kg (132 lbs) for men and 48 kg (106 lbs) for women. All subjects must have a Body Mass Index (BMI) less than or equal to 30 but greater than or equal to 19. 5. Subjects who were healthy as documented by the medical history, physical examination (including but not limited to an evaluation of the cardiovascular, gastrointestinal, respiratory, and central nervous systems), vital sign assessments, 12-lead electrocardiogram (ECG), clinical laboratory assessments, and by general observations. Any abnormalities/deviations from the normal range which was considered clinically relevant by the study physician and investigator was evaluated for individual cases, documented in study files, and agreed upon by the investigator and clinic personnel prior to enrolling a volunteer in this study and for continued enrollment. 6. Subjects who had a negative urine drug screen. 7. Female subjects who had a negative pregnancy screen. 8. Female subjects were physically incapable of pregnancy surgically sterile (bilateral oophorectomy with an absence of bleeding for six months, with or without a hysterectomy, or total hysterectomy and an absence of bleeding for at least three months) or post-menopausal with an absence of menses for at least 12 months. 9. During the course of the study, from study screen until study exit including the washout period, all men used a spermicide containing barrier method of contraception  Institutionalized subjects were not used. 2. Social Habits: a. Use of any tobacco-containing products within one (1) year prior to dosing. b. Ingestion of any alcoholic, caffeine or xanthine-containing food or beverage within the 48 hours prior to the initial dose of study medication. c. Ingestion of any vitamins or herbal products within 7 days prior to the initial dose of the study medication. d. Any recent, significant change in dietary or exercise habits. e. A positive test for any drug included in the urine drug screen. f. History of drug and/or alcohol abuse. 3. Medications: a. Use of any prescription or over-the-counter (OTC) medication within the 14 days prior to the initial dose of study medication. b. Use of any hormonal contraceptives or hormone replacement therapy within 3 months prior to study medication dosing. c. Use of any medication within 28 days prior to initial dose of study medication unless the Pharmacokinetics/Drug Metabolism Department at Mylan was consulted and a decision was made to allow the subjects to enroll based on the medications pharmacology and pharmacokinetics. d. Use of monoamine oxidase inhibitors (MAOIs), pimozide, or thioridazine within 30 days prior to the initial dosing of study medication. 4. Diseases: a. History of any significant cardiovascular, hepatic, renal, pulmonary, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, or neurologic disease. b. Acute illness at the time of either the pre-study medical evaluation or dosing. c. A positive HIV, hepatitis B, or hepatitis C test. 5. Abnormal and clinically significant laboratory test results: a. Clinically significant deviation from the Guide to Clinically Relevant Abnormalities. b. Abnormal and clinically relevant ECG tracing. 6. Donation or loss of a significant volume of blood or plasma (> 450 mL) within 28 days prior to the initial dose of study medication. 7. Subjects who received an investigational drug within 30 days prior to the initial dose of study medication. 8. Allergy or hypersensitivity to paroxetine or other related products. 9. History of difficulties swallowing, or any gastrointestinal disease which could affect the drug absorption. 10. Consumption of grapefruit or grapefruit containing products within seven (7) days of drug administration. 11. History of depression, mania, seizure, akathisia, narrow angle glaucoma, and/or suicidal ideation or behavior (suicidality)