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Related Concept Videos

Adrenergic Agonists: Mixed-Action Agents01:28

Adrenergic Agonists: Mixed-Action Agents

Mixed-action adrenergic agonists, like ephedrine and pseudoephedrine, directly and indirectly affect adrenergic receptors. These agents stimulate adrenoceptors and indirectly release stored neurotransmitters, amplifying the adrenergic response.
Ephedrine and pseudoephedrine lack a catecholamine group, making them less susceptible to degradation by metabolic enzymes. They have increased oral bioavailability and lipophilicity, resulting in a longer duration of action. Their response is reduced by...
Adrenergic Agonists: Therapeutic Uses01:30

Adrenergic Agonists: Therapeutic Uses

Adrenergic agonists have diverse therapeutic uses across various medical conditions and emergencies.
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and anaphylaxis:...
Antiasthma Drugs: Methylxanthines01:24

Antiasthma Drugs: Methylxanthines

Theophylline, a member of the methylxanthine class of bronchodilators, has long been used in asthma management. While its exact mechanism of action is not fully understood, it is believed to have multiple effects on various cellular processes.
Theophylline is thought to inhibit phosphodiesterase enzymes, increasing intracellular levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). This rise in cAMP and cGMP concentrations stimulates cardiac function,...
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics01:23

Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics

Respiratory symptoms, such as congestion and cough, commonly accompany respiratory tract conditions. Various medications, such as antitussives, expectorants, and mucolytics, play crucial roles in providing relief.
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla.  Benzonatate operates peripherally within the respiratory tract by anesthetizing...
Adrenergic Agonists: Therapeutic Classification01:18

Adrenergic Agonists: Therapeutic Classification

Adrenergic agonists can be classified based on their therapeutic uses and mechanisms of action. They serve various purposes in clinical applications.
Vasopressor or pressor agents: They increase blood pressure and function as cardiac stimulants. Examples include endogenous catecholamines (norepinephrine and dopamine) and synthetic agents (phenylephrine).
Bronchodilators: β2-agonists can relax bronchial muscles and widen airways. They are commonly used for treating obstructive pulmonary...
Drug Delivery: Enteral Route01:18

Drug Delivery: Enteral Route

The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
Drugs in...

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Related Experiment Video

Updated: Jun 5, 2026

Acupoint Application Combined with Ear Plaster Therapy for Treating Sleep Disorders with Acute Exacerbation of Chronic Obstructive Pulmonary Disease
04:53

Acupoint Application Combined with Ear Plaster Therapy for Treating Sleep Disorders with Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Published on: October 18, 2024

[Should children be treated with ephedrine mixture?].

Ansgar Berg1, Kari Furu, Margrete Einen

  • 1Kompetansesenteret for klinisk forskning, Klinisk forskningspost – barn, Haukeland universitetssykehus, 5021 Bergen, Norway.

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
|December 18, 2010
PubMed
Summary

Ephedrine treatment for lower respiratory infections in children lacks documented clinical effects and carries risks of adverse drug reactions. Further research is needed to evaluate its safety and efficacy in pediatric patients.

Related Experiment Videos

Last Updated: Jun 5, 2026

Acupoint Application Combined with Ear Plaster Therapy for Treating Sleep Disorders with Acute Exacerbation of Chronic Obstructive Pulmonary Disease
04:53

Acupoint Application Combined with Ear Plaster Therapy for Treating Sleep Disorders with Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Published on: October 18, 2024

Area of Science:

  • Pediatric pharmacology
  • Respiratory medicine
  • Drug safety

Context:

  • Lower respiratory tract infections (LRTI) are prevalent in young children.
  • Symptomatic treatment with ephedrine is a common practice in Norway for pediatric LRTI.
  • Concerns exist regarding the clinical efficacy and safety of ephedrine in this population.

Purpose:

  • To review current knowledge on the clinical effects of ephedrine in infants and children.
  • To document reported adverse drug reactions associated with ephedrine use in pediatric patients.
  • To discuss the practical implications for clinical practice regarding ephedrine in children.

Summary:

  • The clinical effectiveness of ephedrine for symptomatic treatment of pediatric lower respiratory tract infections is not well-established.
  • Sympathomimetic medications, including ephedrine, have been linked to serious adverse drug reactions in young children.
  • Evidence supporting the use of ephedrine in infants and children for respiratory conditions is limited.

Impact:

  • Highlights the need for evidence-based guidelines on ephedrine use in pediatric respiratory care.
  • Informs clinicians about potential risks and the lack of documented benefits of ephedrine in children.
  • Emphasizes the importance of evaluating alternative, safer treatment options for pediatric lower respiratory tract infections.