Ephedrine

Definition

Ephedrine is a sympathomimetic adrenergic drug that stimulates both alpha and beta-adrenergic receptors, used to relieve bronchospasm in conditions like asthma. It also has vasoconstrictive properties, making it useful in treating hypotension.

5 Must Know Facts For Your Next Test

1. Ephedrine acts on both alpha and beta-adrenergic receptors, leading to bronchodilation and increased heart rate.
2. It can be administered orally or via injection for rapid relief of symptoms.
3. Common side effects include nervousness, dizziness, headache, and palpitations.
4. Ephedrine should be used with caution in patients with cardiovascular diseases due to its stimulatory effects on the heart.
5. It's often compared with pseudoephedrine but has stronger central nervous system stimulating properties.

Review Questions

• What receptors does ephedrine act upon to achieve its therapeutic effects?
• List two common side effects associated with ephedrine use.
• Why should ephedrine be used cautiously in patients with cardiovascular diseases?

Related terms

Adrenergics: Drugs that stimulate the sympathetic nervous system by mimicking the actions of adrenaline and noradrenaline.

Anticholinergics: Medications that block the action of acetylcholine in the brain and at various sites throughout the body.

Bronchodilators: Agents that relax bronchial muscle resulting in expansion of the bronchial air passages.