<prompt> Drug used for obesity: PGI June 2008OrlistatRivatatNitous oxidePhenyiepherine  <response>: Ans.: A Orlistat Ref: Harrison 17th427, KDT 6th 130-31 Anti Obesity Drugs or AnorecticSibutramine4 serotonin and nor-epinephrine reuptake inhibitor.OrlisttX: gastic and pancreatic lipase inhibitor.Rimonabantfr. selective cannabinoid receptors antagonist.Leptin analogs: Under investigational study.Olestra9 a sucrose polyester which can be used as a cooking medium in place of fat.Other Facts Harrison 17th 427Sibutramine,;i is the only anorexiant that is currently approved by the Food and Drug Administration FDA for long-term use It produces an average loss of about 5-9 of initial body weight at 12 months. Sibutramine has been demonstrated to maintain weight loss for up to 2 years. The most commonly reported adverse events of sibutramine are headache, dry mouth, insomnia, and constipationCognitive behavioral therapy is used to help change and reinforce new dietary1 and physical activity behaviorsBariatric surgery can be considered for patients with severe obesity BMt 40 kgm2 or those with moderate obesity BMI 35 kgm2 associated with a serious medical conditionNo reference found regarding the drug Rivastat on internet 