n.麻黄碱，麻黄素

Ephedrine is commonly used as a decongestant and bronchodilator in the treatment of asthma and other respiratory conditions.
Ephedrine常被用作治疗哮喘和其他呼吸道疾病的去充血剂和支气管扩张剂。
The athlete was disqualified after testing positive for ephedrine, which is banned by the World Anti-Doping Agency.
这位运动员因药检中发现含有世界反兴奋剂机构禁止使用的麻黄碱而被取消资格。
Ephedrine is an alkaloid derived from the plant Ephedra sinica, traditionally used in Chinese medicine.
麻黄碱是从中国传统药材麻黄中提取的一种生物碱。
A small dose of ephedrine can help increase alertness and reduce fatigue, but higher doses can have serious side effects.
小剂量麻黄碱可以帮助提高警觉性和减轻疲劳，但过量使用会有严重的副作用。
In weight loss supplements, ephedrine has been used to stimulate metabolism and suppress appetite due to its stimulant properties.
在减肥补充剂中，由于其刺激性作用，麻黄碱曾被用于促进新陈代谢并抑制食欲。
Researchers found that ephedrine significantly increased heart rate and blood pressure in their clinical trials.
研究人员在临床试验中发现麻黄碱显著提高了心率和血压。
Ephedrine is often combined with caffeine to enhance its effectiveness in over-the-counter cold and flu medications.
麻黄碱通常与咖啡因结合，以增强其在非处方感冒和流感药物中的效果。
Misuse of ephedrine can lead to symptoms such as rapid heartbeat, dizziness, and even hallucinations.
麻黄碱的滥用可能导致心跳加速、头晕甚至幻觉等症状。
The use of ephedrine-containing products should be avoided by people with high blood pressure or heart disease.
高血压或心脏病患者应避免使用含麻黄碱的产品。
Ephedrine's chemical structure closely resembles that of amphetamines, which explains its stimulant effect on the central nervous system.
麻黄碱的化学结构与安非他明非常相似，这解释了它对中枢神经系统的刺激效应。