The Ministry of Food and Drug Safety said Wednesday it identified two compounds commonly used in fake drugs to treat erectile dysfunction and obesity.

According to the ministry, dithiopropylcarbodenafil is the modified chemical structure of the compound found in Viagra called sildenafil. Chlorosipentramine is the chemically modified version of sibutramine, the main compound of obesity drugs.

The ministry has found that illegal and unethical ingredients were mixed into the original compounds through an analysis of the elements of the health products sold.

Through this finding, it said, the government would be able to preemptively prevent people from advertising fake products for increasing sexual performance and weight control.

The National Institute of Food and Drug Safety Evaluation also said that it would continue to improve consumer safety and confidence by identifying chemical structures of other drugs that can be modified to mislead the public.

The ministry said it would provide the analysis of the illegal ingredients and standards to other related institutions, including the National Forensic Service and Korea Customs Service, to eradicate and manage hazardous food and drug products.