Core Viewpoint - The article highlights the dangers of purchasing unregulated weight loss drugs online, emphasizing the presence of harmful substances in these products and the lack of safety and efficacy assurances from manufacturers [1][4][6]. Group 1: Case Study of Zhou's Experience - Zhou, a woman from Nanjing, was attracted to an online weight loss drug that claimed to help lose ten pounds in ten days without diet or exercise, leading her to purchase it for approximately 780 yuan [1]. - Upon receiving the pills, Zhou noticed they lacked any manufacturer information, ingredient details, or usage instructions, raising concerns about their legitimacy [3]. - After ten days of use, Zhou experienced significant adverse effects, including dizziness, insomnia, and anxiety, prompting her to report the product to the authorities [4]. Group 2: Analysis of Harmful Ingredients - The weight loss pills were found to contain dangerous substances such as ephedrine, pseudoephedrine, fentermina, and fluoxetine, which can severely impact cardiovascular and central nervous systems [4][6]. - Ephedrine can cause excitement and reduce appetite but is also addictive, leading to withdrawal symptoms and other health issues [6]. - Fluoxetine, a controlled substance in China, is used for treating mental disorders but can cause anxiety and cognitive impairment if misused [6]. Group 3: Regulatory Insights - The article stresses that many weight loss products on the market are unregulated and often contain banned ingredients, misleading consumers with exaggerated claims [6]. - Only five weight loss medications are approved by the national drug regulatory authority, with GLP-1 class prescription drugs requiring a legitimate medical prescription for safe use [6].