Ephedrine is a medication and stimulant. It is often used to prevent low blood pressure during anesthesia. It has also been used for asthma, narcolepsy, and obesity but is not the preferred treatment. [ … ] Common side effects include trouble sleeping, anxiety, headache, hallucinations, high blood pressure, fast heart rate, loss of appetite, and inability to urinate. Serious side effects include stroke and heart attack.
“Ephedrine.” Wikipedia, Wikimedia Foundation, 14 May 2022, en.wikipedia.org/wiki/Ephedrine.