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Avoiding first-pass metabolism allows more of the drug to be available for treatment. Gastrointestinal discomfort and digestive side-effects can also be avoided by IN dosage. IN delivery allows OT to cross the blood brain barrier, expediting the drug to the central nervous system and cerebrospinal fluid. The blood-brain-barrier normally ...
Synthetic oxytocin, sold under the brand name Pitocin among others, is a medication made from the peptide oxytocin. [6] [7] As a medication, it is used to cause contraction of the uterus to start labor, increase the speed of labor, and to stop bleeding following delivery. [6] For this purpose, it is given by injection either into a muscle or ...
The authors of one of these studies speculated that oxytocin's effects on muscle contractibility may facilitate sperm and egg transport. [77] In a study measuring oxytocin serum levels in women before and after sexual stimulation, the author suggests it serves an important role in sexual arousal. This study found genital tract stimulation ...
Oxytocin/ergometrine (trade name Syntometrine) is an obstetric combination drug. The components are synthetically produced oxytocin, a human hormone produced in the hypothalamus, and ergometrine, an alpha-adrenergic, dopaminergic and serotonin (5-HT 2) receptor agonist. Both substances cause the uterus to contract.
NSAIDs (such as indomethacin) and calcium channel blockers (such as nifedipine) are the most likely to delay delivery for 48 hours, with the least amount of maternal and neonatal side effects. [46] Otherwise, tocolysis is rarely successful beyond 24 to 48 hours because current medications do not alter the fundamentals of labor activation. [ 47 ]
Carbetocin has been approved for use immediately following an elective Cesarean section when a local or spinal anesthesia has been used. [8] Since the uterus cannot contract on its own following incision during a Cesarean section, exogenous administration of oxytocin or an analog is necessary to restore uterine tone and prevent hemorrhage.
Labor induction is the process or treatment that stimulates childbirth and delivery. Inducing (starting) labor can be accomplished with pharmaceutical or non-pharmaceutical methods. In Western countries, it is estimated that one-quarter of pregnant women have their labor medically induced with drug treatment. [1]
Ergonovine has a medical use in obstetrics to facilitate delivery of the placenta and to prevent bleeding after childbirth by causing smooth muscle tissue in the blood vessel walls to narrow, thereby reducing blood flow. It is usually combined with oxytocin (Syntocinon) as syntometrine. It can induce spasm of the coronary arteries. [12]