is abstained off alcohol vs is abstained of alcohol

Some examples from the web:

• Actually, I'm swearing off alcohol for a bit.
• Actually, I'm swearing off alcohol for a bit.
• - The human body can't burn off alcohol.
• The human body can't burn off alcohol.

Some examples from the web:

• Blood screen showed traces of alcohol.
• Another contribution to the pleasurable effects of alcohol is serotonin.
• That increases the effect of alcohol dramatically.
• The consequences of alcohol abuse affect us all.
• We should ban advertising of alcohol, however implicit.
• We need proper restrictions on the advertising of alcohol.
• The quantities of alcohol awarded under such tendering procedures shall not exceed 400000 hectolitres of alcohol at 100 % vol. per year.
• Beverages containing more than 1,2% by volume of alcohol shall not bear health claims, except where these support national authority or Community messages about the dangers of misuse of alcohol.
• The quantities of alcohol awarded under such tendering procedures shall not exceed 700000 hectolitres of alcohol at 100 % vol per procedure.
• It's the Mel Gibson of alcohol.
• World's full of alcohol, Juliette.
• Transient male found facedown, coffee ground emesis, blood and smell of alcohol.
• I promise you try not another drop of alcohol.
• All of the victims had elevated levels of alcohol in their systems.
• Now, the availability of alcohol.
• Vince, my uncle, died of alcohol poisoning.
• Okay, your breath smells of alcohol.
• I think your symptoms are the result of alcohol abuse.
• Really craving that warm, comforting feeling of alcohol hitting the back of your throat.
• Blood shows significant levels of alcohol, Vicodin and Xanax.