Pharmacology General b6b5ebe0 Sibutramine is ? A Antithyroid drug B Antiobesity drug C Antimalarial drug D Antitubercoulous drug High-Yield Explanation Ans. is 'a' i.e., Endorphines Endorphins have major action on receptors. Enkephalins have major action on a receptors. Dynorphins have major action on c receptors.