sympathomimetic
Definition
- Adjective:
- Relating to or producing physiological effects resembling those caused by the activity of the sympathetic nervous system: A "sympathomimetic" substance mimics or stimulates the effects of the sympathetic nervous system, such as increasing heart rate, constricting blood vessels, and dilating airways.
- Relating to epinephrine (its release or action): Specifically, a "sympathomimetic" agent can refer to one that mimics the action of the neurotransmitter epinephrine (adrenaline).
Usage
- The term "sympathomimetic" is primarily used in medical, pharmacological, and physiological contexts to describe drugs, agents, or effects.
- It functions as an adjective to modify nouns like "drug," "agent," "effect," "activity," or "amine."
Examples
- Adjective:
- Pseudoephedrine is a common sympathomimetic drug found in many decongestants.
- The patient experienced a sympathomimetic response, including tachycardia and hypertension.
- These compounds have direct sympathomimetic effects on alpha and beta-adrenergic receptors.
Advanced Usage
- "sympathomimetic amine": A specific class of compounds, often used as drugs, that produce sympathomimetic effects. Examples include epinephrine, norepinephrine, and amphetamine.
- Amphetamines are potent sympathomimetic amines with central nervous system stimulant effects.
Variants and Related Words
- Sympathomimetic (noun): Less commonly, the word can be used as a noun to refer to a sympathomimetic drug or agent.
- This medication is a potent sympathomimetic.
- Adrenergic (adjective): A closely related term often used synonymously with "sympathomimetic," referring specifically to the effects of epinephrine and norepinephrine.
Synonyms
- Adrenergic: Pertaining to or mimicking the effects of epinephrine or norepinephrine.
- Adrenoceptor agonist: A more specific term for a drug that stimulates adrenergic receptors.
Antonyms
- Sympatholytic: Referring to an agent that opposes or blocks the effects of the sympathetic nervous system.
- Adrenergic antagonist: A drug that blocks adrenergic receptors.
Adjective
-
relating to epinephrine (its release or action)
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