Dicyclomine hydrochloride 是一种有效的口服活性毒蕈碱胆碱能受体 (muscarinic cholinergic receptors) 拮抗剂。Dicyclomine hydrochloride 对 M1 受体亚型 (Ki=5.1 nM) 和 M2 受体亚型 (Ki=54.6 nM) 在刷缘膜和基底质膜中均表现出较高的亲和力。Dicyclomine hydrochloride是一种抗痉挛试剂，在体内可缓解胃肠道平滑肌痉挛。 Dicyclomine hydrochloride is a potent and orally active muscarinic cholinergic receptors antagonist. Dicyclomine hydrochloride shows high affinity for muscarinic M1 receptor subtype (Ki=5.1 nM) and M2 receptor subtype (Ki=54.6 nM) in brush-border membrane and basal plasma membranes, respectively[1]. Dicyclomine is an antispasmodic agent and relieves smooth muscle spasm of the gastrointestinal tract in vivo.