Tocolytic Agents
Drugs that prevent preterm labor and immature birth by suppressing uterine contractions (TOCOLYSIS). Agents used to delay premature uterine activity include magnesium sulfate, beta-mimetics, oxytocin antagonists, calcium channel inhibitors, and adrenergic beta-receptor agonists. The use of intravenous alcohol as a tocolytic is now obsolete.
Nebulizers and Vaporizers
Bronchodilator Agents
Administration, Inhalation
Budesonide
A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.
Aerosols
Butoxamine
Peak Expiratory Flow Rate
Pregnenediones
Asthma
Albuterol
Metaproterenol
A beta-2 adrenergic agonist used in the treatment of ASTHMA and BRONCHIAL SPASM.
Receptors, Adrenergic, beta-2
A subclass of beta-adrenergic receptors (RECEPTORS, ADRENERGIC, BETA). The adrenergic beta-2 receptors are more sensitive to EPINEPHRINE than to NOREPINEPHRINE and have a high affinity for the agonist TERBUTALINE. They are widespread, with clinically important roles in SKELETAL MUSCLE; LIVER; and vascular, bronchial, gastrointestinal, and genitourinary SMOOTH MUSCLE.
Forced Expiratory Volume
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.