<prompt> One of the following is not a 5HT receptors on antagonistKetanserineLanreotideMethylsergideTropisetron  <response>: Lanreotide is a medication used in the management of acromegaly and symptoms caused by neuroendocrine tumors, most notably carcinoid syndrome. It is a long-acting analogue of somatostatin, like octreotide Refer kDT 6e p166 