Related Experiment Video
Updated: Aug 12, 2026

A Facile and Efficient Approach for the Production of Reversible Disulfide Cross-linked Micelles
Published on: December 23, 2016
Acetylcysteine: a drug that is much more than a mucokinetic
1Department of Medicine, Olive View Medical Center, Sylmar, CA 91342-1495.
Abstract:
Acetylcysteine is the most widely used mucolytic drug, and it has greater documentation of effectiveness than any other mucokinetic agent. Originally it was used as an aerosol, but currently it is mostly prescribed by the oral route. In addition to the lytic activities of acetylcysteine, the aerosolized drug has bronchorrheic effects, while oral therapy results in expectorant and mucoregulator actions. Newer uses of the drug depend on its effectiveness as a free-radical scavenger, since it is a precursor of glutathione. It is well established as the drug of choice for treating acetaminophen poisoning, and it offers an important role in protecting the lungs from a variety of insults that result in oxidant damage.
Related Concept Videos
Antidotes
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
Direct-Acting Cholinergic Agonists: Pharmacokinetics
Indirect-Acting Cholinergic Agonists: Mechanism of Action
Reversible inhibitors like edrophonium bind to a specific part of the enzyme called the anionic catalytic site. They form noncovalent bonds, which means they are not strongly attached to the enzyme. This creates a temporary and less stable enzyme–inhibitor complex, leading to...
Anticholinesterase Agents: Poisoning and Treatment
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is slower than the...
Enhanced Elimination of Poison
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Pharmaceutical Poisoning: Treatment Strategies

