To tweet or not to tweet: Tweets about tobacco regulation can help disseminate anti-regulatory messages.

The primary implications of this research are that communication about tobacco policy on Twitter should be part of a broader public engagement strategy with quantifiable metrics of success. The information environment on Twitter is demonstrably hostile to pro-tobacco regulatory policy positions. As a result, efforts to engage on the platform by regulatory institutions like the FDA can inadvertently provide materials that are easily leveraged as effective counter-messaging. Moreover, this counter-messaging can disseminate more broadly than the original message.