bronchodilators
pathogenAn agent of infection is a pathogen.
A cytotoxin is an agent that kills cells
The nerve agent that causes protein-rich bronchial aspirates and difficulty breathing is likely sarin (GB) or a similar organophosphate compound. These agents inhibit acetylcholinesterase, leading to an accumulation of acetylcholine at neuromuscular junctions, which can result in respiratory distress and bronchorrhea. The increased bronchial secretions and resultant pulmonary edema are characteristic symptoms of nerve agent exposure. Immediate medical intervention is critical in such cases.
In medical terms, an agent usually refers to a medication. For instance, an antihypertensive agent reduces blood pressure.
A teratogen is an agent that causes birth defects.
An antimotility agent controls loose stools.
A carcinogen is an agent that causes cancer.
nonpathogen
An antineoplastic agent is one that works against tumors. A tumor is also known in medical terms as a neoplasm.
Antagonist is a process or agent that works against another.
Atropine is an agent that blocks parasympathetic nerve impulses by inhibiting the action of acetylcholine at muscarinic receptors. It is commonly used in medical settings to increase heart rate and dilate the pupils.
An agent used to increase the effectiveness of a medication is a "potentiator".An agent used to increase the effectiveness of a medication is a "potentiator".