US FDA 網站Q&A
Questions and Answers about FDA’s Initiative Against Contaminated Weight Loss Products
What is cetilistat and what are the associated risks?
Cetilistat is an experimental obesity drug and is currently the subject of clinical trials in the U.S., Japan, and Europe. Because cetilistat is in clinical trials, there is no safety or efficacy profile for this drug. Consumers in certain populations, however, could face serious health risks if taking cetilistat. For example, transplant patients taking anti-rejection drugs could suffer organ rejection. Cetilistat is also contraindicated with warfarin and levothyroxine as this could cause increased risk of bleeding and hypothyroidism. The majority of adverse events associated with ingestion of cetilistat are gastrointestinal in nature; e.g., fecal incontinence, rectal discharge, and defecation urgency. Because cetilistat decreases the absorption of fat, this may result in fatty or oily stool which could lead to malabsorption of nutrients and vitamin deficiency. Other adverse events include skin and subcutaneous tissue disorders. Cetilstat may reduce serum concentrations of vitamin E, vitamin D, and beta-carotene. Other safety concerns include the development of gallstones and kidney stones.