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Videos de Conceptos Relacionados

Acute Pharyngitis01:30

Acute Pharyngitis

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Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
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Tonsillitis II: Management01:26

Tonsillitis II: Management

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This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.
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Methods of reducing fever01:22

Methods of reducing fever

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The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
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Drugs Used in Upper Respiratory Disorders: Overview01:16

Drugs Used in Upper Respiratory Disorders: Overview

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Upper respiratory tract disorders, including viral infections and allergic rhinitis, cause significant discomfort and disrupt daily life. Managing these conditions involves a variety of drugs, such as antihistamines, intranasal steroids, decongestants, antitussives, expectorants, and mucolytics. Specific examples of drugs in each category are provided.
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
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Chronic Pharyngitis01:23

Chronic Pharyngitis

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Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
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Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics01:23

Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics

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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...
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Video Experimental Relacionado

Updated: Apr 17, 2026

Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment
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Echinacea para prevenir y tratar el resfriado común.

Marlies Karsch-Völk1, Bruce Barrett2, Klaus Linde1

  • 1Institute of General Practice, Technische Universität München, Klinikum rechts der Isar, München, Germany.

JAMA
|February 11, 2015
PubMed
Resumen

Los productos de equinácea no muestran ningún efecto significativo en la prevención o acortamiento de la duración del resfriado común. Sin embargo, un análisis exploratorio sugiere una pequeña reducción potencial en la incidencia del resfriado con el uso de equinácea.

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Área de la Ciencia:

  • Investigación de la medicina herbal de la investigación de la medicina de las hierbas.
  • Epidemiología de las enfermedades infecciosas.

Sus antecedentes:

  • El resfriado común es una infección viral muy extendida.
  • La equinácea es un remedio popular a base de hierbas que a menudo se utiliza para la prevención y el tratamiento del resfriado.

Objetivo del estudio:

  • Evaluar la eficacia de los productos de equinácea en la reducción de la incidencia y la duración del resfriado común en comparación con el placebo.

Principales métodos:

  • Revisión sistemática y metanálisis de los ensayos individuales de profilaxis y tratamiento.
  • Comparación de los resultados entre los grupos de equinácea y los grupos de placebo.

Principales resultados:

  • Los ensayos de profilaxis individual no demostraron una asociación significativa entre los productos de equinácea y la prevención del resfriado común.
  • Un metanálisis exploratorio indicó una reducción potencial, aunque pequeña, en la incidencia del resfriado con el uso de equinácea.
  • Los ensayos de tratamiento no encontraron ninguna asociación entre los productos de equinácea y una menor duración de los síntomas del resfriado común.

Conclusiones:

  • La evidencia actual no apoya los productos de equinácea para la prevención del resfriado común o la duración del tratamiento.
  • Es posible que se justifique una investigación adicional para explorar el posible efecto modesto en la incidencia de resfriados.