Sympathomimetic

Definition

Sympathomimetics are drugs that mimic the effects of the sympathetic nervous system by stimulating adrenergic receptors. They are used to treat conditions like asthma, hypotension, and anaphylaxis.

5 Must Know Facts For Your Next Test

1. Sympathomimetics can be classified as direct-acting, indirect-acting, or mixed-acting based on their mechanism of action.
2. Commonly used sympathomimetics include epinephrine, norepinephrine, and albuterol.
3. These drugs can cause side effects such as hypertension, tachycardia, and anxiety due to increased sympathetic activity.
4. Sympathomimetics can be administered via various routes including oral, intravenous, and inhalation.
5. They play a crucial role in emergency medicine for managing shock and severe allergic reactions.

Review Questions

• What are the primary mechanisms of action for sympathomimetic drugs?
• Name three common conditions that sympathomimetics are used to treat.
• What are some potential side effects of using sympathomimetic drugs?

Related terms

Adrenergic Receptors: Receptors that respond to adrenergic agonists like norepinephrine and epinephrine.

Anticholinergics: Drugs that block the action of acetylcholine in the central and the peripheral nervous system.

Asthma: A chronic respiratory condition characterized by airway inflammation and hyperreactivity.