labor

Valethamate bromide (Resitan) 是快速作用的抗胆碱能解痉和肌萎缩剂，是一种酯，能够改善宫颈扩张加速分娩。

SSR126768A 是一种新型且具有选择性、口服活性和有效性的催产素(OT)受体拮抗剂，对子宫收缩有抑制作用，可用于预防早产。

Oxytocin (Oxytocin (Syntocinon)) 是哺乳动物的神经垂体激素，是多效的下丘脑肽，是催产素受体的配体，有助于分娩、哺乳和亲社会行为。Oxytocin 有刺激乳腺分泌乳汁，在分娩过程中促进子宫平滑肌的收缩，促进母爱的作用。

Camylofin HCl is an antispasmodic used in labor treatment and is also used to deliver drug therapy for ulcerative colinitis.

Dinoprost (Prostaglandin F2a) 是口服有效的、内源性的前列腺素 F 受体激动剂。它是在子宫内膜腔上皮和黄体中局部产生的溶酶激素。它在分娩过程中起关键作用。

Phencarbamide napadisilate 是一种在分娩期间使用的抗痉挛和抗胆碱能化合物。

Phencarbamide 是一种抗痉挛和抗胆碱能化合物，常用于分娩期间。该化合物直接作用于平滑肌。

Delprostenate is similar to PGF(2alpha), a naturally occurring prostaglandin used in medical labor induction and abortion drugs.

15(S)-15-methyl Prostaglandin F2α (15(S)-15-methyl PGF2α) has been shown to have potent uterine stimulant and abortifacient properties when administered intramuscularly to induce labor. 15(S)-15-methyl PGF2α isopropyl ester is a lipophilic analog of 15(S)-15-methyl PGF2α methyl ester, which may be hydrolyzed in vivo to the fully active free acid.

5β-Dihydroprogesterone (5β-DHP) is a progesterone receptor agonist and metabolite of progesterone .1,2It is formed from progesterone by 5β-reductase.25β-DHP inhibits spontaneous contractions in isolated rat uterus when used at a concentration of 10 μg/ml, an effect that can be blocked by the progesterone receptor antagonist RU486 but not the GABAAreceptor antagonist picrotoxin .1It is a negative modulator of homooligomeric Ρ1 subunit-containing GABAAreceptors, inhibiting GABA-induced currents inX. laevisoocytes expressing these receptors (IC50= 5.02 μM).3Plasma levels of 5β-DHP decrease at the onset of spontaneous human labor.4

Dinoprost tromethamine salt (PGF2α THAM) 是一种口服有效的前列腺素 F 受体激动剂。它是在子宫内膜腔上皮和黄体中局部产生的溶酶激素，在分娩过程中起关键作用。

Atosiban (RW22164) 是一种脱氨基催产素类似物，是一种九肽，也是竞争性的催产素受体拮抗剂。它是一种宫缩抑制剂，可用于自发早产的研究。