This petition was rejected

The Government e-Petitions Team gave the following reason:

We're not sure what you mean by "government business". We think you might be concerned about parliamentary business, especially MPs taking part in debates and votes in the House of Commons.

Parliament and Government are different. You can find out more about this here:

http://www.parliament.uk/about/how/role/parliament-government/

We're also not sure whether you want MPs to be banned from taking part in parliamentary business if they have consumed only a small amount of alcohol in the previous 24 hours, or whether you would like MPs to be banned from taking part if they are under the influence of alcohol - perhaps along similar lines to drinking and driving.

You could start a new petition explaining clearly what you would like to happen. For example, you could ask the House of Commons to create a rule banning MPs from taking part in parliamentary business if they are under the influence of alcohol.