Ephedrine is a medication used for respiratory and nasal congestion, as well as weight loss and athletic performance enhancement. However, it is essential to ensure the purity of ephedrine, as impurities can reduce its effectiveness and cause harmful side effects. Common impurities found in ephedrine include ephedrine-related alkaloids, such as pseudoephedrine and norpseudoephedrine, as well as contaminants like heavy metals and residual solvents. Therefore, it is crucial
