Prucalopride drug is ?
(A) 5HT4 agonist (B) 5HT2b agonist (C) 5HT2b antagonist (D) 5HT2a agonist
(A) Ans. A. 5HT4 agonist* Prucalopride is a drug acting as a selective, high affinity 5-HT4 receptor agonist which targets the impaired motility associated with chronic constipation, thus normalizing bowel movements.* Approved for use in Europe in 2009.* Prucalopride, a first in class dihydro-benzofuran-carboxamide, is a selective, high affinity serotonin (5-HT4) receptor agonist with enterokinetic activities.* Prucalopride alters colonic motility patterns serotonin 5-HT4 receptor stimulation: it stimulates colonic mass movements, which provide the main propulsive force for defecation.* The observed effects are exeed highly selective action on 5-HT4 receptor.* Prucalopride has >150-fold higher affinity for 5-HT4 receptors than for other receptors.