Ephedrine is a mild stimulant.
Ephedrine is used as a dopant because of its stimulant effect, but it is also used as a slimming aid. The performance-enhancing effect is poorly documented, and in terms of impact on dieting, there is no scientific consensus.
Ephedrine has many of the same side effects as amphetamines, but milder. Upon ingestion of higher doses the effects on heart / vessel (including cardiac arrhythmias and increased blood pressure) and psyche become more prominent – and the risk of serious side effects increases.
Other , less serious side effects:
agitation, restlessness and sleep problems
headache , dizziness , nausea / vomiting