Beta-2 adrenomimetic drugs, also known as beta-2 adrenergic agonists, represent one of the most important pharmacological groups used in respiratory and obstetric medicine. They act selectively on beta-2 adrenergic receptors, producing smooth muscle relaxation, bronchodilation, and inhibition of uterine contractions. These agents are crucial in the management of asthma, chronic obstructive pulmonary disease (COPD), and premature labor. However, their use requires careful consideration of pharmacokinetics, receptor selectivity, and adverse effects, particularly in patients with cardiovascular disease, diabetes, or thyroid dysfunction. This article provides an in-depth overview of the pharmacodynamics, pharmacokinetics, clinical applications, adverse reactions, and therapeutic nuances of beta-2 adrenomimetic drugs, emphasizing their role in modern clinical pharmacology and rational drug therapy.