Uterine hyperstimulation or hypertonic uterine dysfunction is a potential complication of labor induction. This is displayed as Uterine tachysystole- the contraction frequency numbering more than five in a 10-minute time frame or as contractions exceeding more than two minutes in duration. Uterine hyperstimulation may result in fetal heart rate abnormalities, uterine rupture, or placental abruption. It is usually treated by administering terbutaline. Causes
Mistoprostol is a drug treatment for peptic ulcers that can also cause abortion or induce labor. The use of this drug (inserted vaginally) to induce labor can cause uterine hyperstimulation. Treatment
Treatments of uterine hyperstimulation are primarily experimental. Those that have shown to alleviate the conditions are:

Prostoglandin E2 is administered before labor to minimize risk of uterine hyperstimulation and to minimize the effects on Fetal Heart Rate.Administration of tocolytic treatment with β2-adrenergic drugs has shown to stabilize uterine contractions while also effectively lowering Fetal Heart Rate. The usage of a balloon catheter to induce labor rather than Prostoglandin E2 lowers the risk of uterine hyperstimulation and its effect on fetal heart rate. References

National Collaborating Centre for Womens and Childrens Health (UK). Induction of Labour. London: RCOG Press; 2008 Jul. (NICE Clinical Guidelines, No. 70.) 8, Complications of induction of labour. Jeroen Bosch Hospital, Department of Obstetrics, et al. “Mechanical Methods for Induction of Labor.” US National Public Library, 18 Oct. 2019. PMC 6953206
H. Dadi  S.C. Patwardhan  A. Ikomi  D. Ojutiku, "Self‐induction of labour using misoprostol: an unusual case of uterine hyperstimulation". doi:10.1111/j.1471-0528.2004.00186.x
Potassium chloride, also known as potassium salt, is used as a medication to treat and prevent low blood potassium. Low blood potassium may occur due to vomiting, diarrhea, or certain medications. The concentrated version should be diluted before use. It is given by slow injection into a vein or by mouth.Side effects may include heart problems if given too quickly by injection into a vein. By mouth it can result in abdominal pain, peptic ulcer disease, or gastrointestinal bleeding. Greater care is recommended in those with kidney problems. As long as high blood potassium does not occur, use in pregnancy or breastfeeding is believed to be safe for the baby. Generally, the strength of the formulation for injection into a vein should not be greater than 40 mmol/L (3 mg/L).Potassium chloride came into large scale commercial use as a fertilizer in 1861 and has been used medically since the 1950s. It is on the World Health Organizations List of Essential Medicines. Potassium chloride is available as a generic medication. In 2020, it was the 33rd most commonly prescribed medication in the United States, with more than 17 million prescriptions. Medical use
Potassium chloride is used in the treatment of hypokalemia as an electrolyte replenisher. With a molecular weight of approximately 75 and a valence of 1, the use of KCl for electrolytes makes 75 mg the equivalent of 1 mEq. Some cardiac surgery procedures cannot be carried out on the beating heart.