Topical Oral and Intranasal Antiviral Agents for Coronavirus Disease 2019 (COVID-19)

Victor B Hsue1, Kyohei Itamura1, Arthur W Wu1

  • 1Department of Otolaryngology-Head and Neck Surgery, Cedars Sinai, Los Angeles, CA, USA.

Insights

Agents targeting the oral and nasal cavities show promise for treating and preventing Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Further clinical and safety trials are needed to confirm efficacy for coronavirus disease 2019 (COVID-19).

Area of Science:

  • Virology
  • Infectious Diseases
  • Pharmacology

Background:

  • Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) viral loads are highest in the oral and nasal cavities.
  • Targeting these areas offers potential for therapeutic and prophylactic benefits against coronavirus disease 2019 (COVID-19).

Purpose of the Study:

  • To review and evaluate agents with potential efficacy against SARS-CoV-2 in the oral and nasal cavities.
  • To assess their current applications, adverse reactions, and stage of research for COVID-19 management.

Main Methods:

  • A comprehensive literature review was conducted.
  • Agents were evaluated based on in-vitro efficacy, clinical trial status, and safety data.

Main Results:

  • Multiple agents demonstrated in-vitro efficacy against SARS-CoV-2.
  • Significant potential exists for agents acting on oral and nasal cavities.

Conclusions:

  • Promising agents require further clinical trials and in-vivo studies.
  • Extensive safety trials are necessary before widespread implementation for COVID-19 treatment and prevention.

Related Concept Videos

Drugs Used in Upper Respiratory Disorders: Overview01:16

Drugs Used in Upper Respiratory Disorders: Overview

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...
425
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...
592
Upper Respiratory Drugs: First and Second-Generation Antihistamines01:15

Upper Respiratory Drugs: First and Second-Generation Antihistamines

Antihistamines are a class of drugs widely used to alleviate the symptoms of allergies, such as sneezing, itching, and nasal congestion. They work by inhibiting the actions of histamine, which is released by immune cells in response to allergenic substances or tissue injuries.
Histamine binds to specific receptor sites, known as H1 receptors, on tissue cells, triggering inflammation and swelling. Antihistamines combat these effects by competing with histamine for these receptor sites. By...
583
Upper Respiratory Drugs: Decongestants01:27

Upper Respiratory Drugs: Decongestants

Decongestants are a class of medications used primarily to alleviate nasal congestion, a common symptom resulting from allergies, colds, sinusitis, and other upper respiratory tract infections. These drugs work by activating α-adrenergic receptors, constricting small blood vessels in the nasal membranes. This action results in the opening of clogged nasal passages, thereby facilitating sinus drainage and relieving congestion.
Most decongestants are readily available over-the-counter in...
476
Subviral Agents01:29

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
241
Local Anesthetics: Common Agents and Their Applications01:23

Local Anesthetics: Common Agents and Their Applications

Local anesthetics (LAs) are commonly used for various applications in medical and dental procedures. Some of the common agents used are cocaine, lidocaine, and bupivacaine.
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
636