Bioequivaelnce Study of Clarithromycin 250 mg/5 mL Powder for Oral Suspension Under Fed Conditions

Inclusion Criteria: * Be in the age range of 18-45 years. * Be neither overweight nor underweight for his/her height as per the Life Insurance Corporation of India height/weight chart for non-medical cases. * Have voluntarily given written informed consent to participate in this study. * Be of normal health as determined by medical history and physical examination of the subjects performed within 21 days prior to the commencement of the study. Exclusion Criteria: * History of allergy to clarithromycin, erythromycin and related macrolides. * History of severe diarrhoea within 2 weeks preceding Day 1 of this study. * Any evidence of organ dysfunction or any clinically significant deviation from the normal, in physical or clinical determinations * Presence of disease markers of HIV 1 or 2, Hepatitis B or C viruses or syphilis infection. * Presence of values which are significantly different from normal reference ranges (as defined in Appendix 5) and/or judged clinically significant for haemoglobin, total white blood cells count, differential WBC count or platelet count. * Positive for urinary screen testing of drugs of abuse (opiates or cannabinoids) * Presence of values which are significantly different from normal reference ranges (as defined in Appendix 5) and/or judged clinically significant for serum creatinine, blood urea nitrogen, serum aspartate aminotransferase (AST), serum alanine aminotransferase (ALT), serum alkaline phosphatase, serum bilirubin, plasma glucose or serum cholesterol. * Clinically abnormal chemical and microscopic examination of urine defined as presence of RBC, WBC (\>4/HPF), glucose (positive) or protein (positive). * Clinically abnormal ECG or Chest X-ray. * QTc interval beyond normal limits * History of serious gastrointestinal, hepatic, renal, cardiovascular, pulmonary, neurological or haematological disease, diabetes or glaucoma. * History of any psychiatric illness which may impair the ability to provide written informed consent. * Regular smokers who smoke more than 10 cigarettes daily or have difficulty abstaining from smoking for the duration of each study period. * History of drug dependence or excessive alcohol intake on a habitual basis of more than 2 units of alcoholic beverages per day (1 unit equivalent to half pint of beer or 1 glass of wine or 1 measure of spirit) or have difficulty in abstaining for the duration of each study period. * Use of any enzyme modifying drugs within 30 days prior to Day 1 of this study. * Participation in any clinical trial within 12 weeks preceding Day 1 of this study. * A haemoglobin concentration of less than 7 % of lower limit of reference range e.g. 13 gm % for reference range of 14-18 gm at screening.