Several Google AdWords advertisers posted complaints in the Google AdWords Help forum that their ads are being labelled as either gambling related or pharmaceutical, resulting in either special certificates required, delays in ad approvals or disapprovals of ads.

Laura from Google confirmed there is a bug with the Google AdWords automated ad approval system. She said:

So if you have this issue, I assume you just need to wait for Google to fix it.

How long? There is no ETA.

Forum discussion at Google AdWords Help.

Image credit to ShutterStock for colorful test tubes.