OBJECTIVE The aim of this study was to investigate and compare the effects of nifedipine and ritodrine treatment on fetomaternal blood flow parameters in women with preterm labor. MATERIAL AND METHODS Sixty women with gestational age between 24 and 36 weeks admitted to the obstetrics clinic for preterm labor were enrolled in this study. Patients were randomly assigned to receive either nifedi...

background: pregnancy rate with ivf cycle is almost 22%. many investigations perform to increase this rate in ivf. various factors affect the result of ivf cycles. one of these factors could be uterine contractions that expel transferred embryo. ritodrine is a beta mimetic agent that can block and decrease uterine contractions. objective: the objective of this study was to determine ritodrine e...

OBJECTIVE To evaluate the effect of ritodrine sustained release capsules for maintaining uterine quiescence after successful treatment of active preterm labour. DESIGN Multicentre placebo-controlled trial. SETTING Five teaching hospitals in the Netherlands. PARTICIPANTS Women (n = 95) at less than 35 weeks of gestation in whom active preterm labour had been stopped with intravenous ritodr...

Preterm labour continues to complicate a substantial number of pregnancies, and preterm delivery accounts for most early neonatal deaths not due to congenital abnormalities.' Ritodrine hydrochloride, a 13 sympathomimetic agent with predominant effects on 0 receptors such as those of the uterus,2 is effective in suppressing premature uterine contractions.2 We describe six pregnant women given ri...

Objective In terms of efficacy, several previous studies have shown that the success rate in inhibiting preterm labor was not different between magnesium sulfate and ritodrine. However, there is a paucity of information regarding the efficacy of both medications after consideration of intra-amniotic infection, which is one of the most important prognostic factors in patients of threatened prete...

Aim. Antenatal glucocorticoid therapy (AGT) has been commonly used recently. However, this therapy has severe harmful effects such as maternal hyperglycemia. In Japan, ritodrine hydrochloride has been used as a tocolytic agent. In this study, we performed retrospective casecontrol study to clarify whether concomitant use of ritodrine and glucocorticoid was safe to pregnant women without diabete...

Drug-induced rhabdomyolysis during pregnancy is extremely rare. We report here a rare case of ritodrine-hydrochloride-induced rhabdomyolysis in a pregnant patient with myotonic dystrophy. A 32-year-old primigravida was admitted because of premature labor at 31 weeks of gestation. She had been diagnosed as having myotonic dystrophy by electromyographic investigations and abnormal serum creatinin...

A sensitive and selective method has been developed for the determination of ritodrine diastereomers in human serum using high-performance liquid chromatography with a chiral stationary phase column and a fluorescence detector. No interfering peaks from endogenous substances were observed. The method showed good reproducibility and accuracy, and the standard curve was linear up to 100 ng/mL wit...