Corrects that the accused liquor merchant was aware adding Sildenafil to liquor was illegal.

HONG KONG (MarketWatch) -- A Chinese liquor maker has been arrested for secretly adding a version of the erectile-dysfunction drug Viagra in spirits sold to consumers, China's state media reported recently. To "increase liquor sales and make money fast," the founder of the Hubei-based Nine Springs Ecological Agriculture Development Co., bought 1 kilogram of Sildenafil on the Internet in January, adding the drug -- marketed as Viagra and Revatio -- to alcoholic drinks without mentioning the special ingredient on the label, the state-run China News Agency said Friday. The spirits were marketed as "nutritional healthy liquor" and sold around Hubei province at a price of up to 60 yuan ($9.70) per bottle. The founder, identified in the report only by his surname Huang, also allegedly kept 30 bottles of the potion for himself, CNA said. Huang said he thought only an overdose of the drug would be harmful but admitted to knowing that Chinese law forbids adding Sildenafil to liquor, the report added.